It may not display this or other websites correctly. I'm aware maintenance (particularly in the field), weight, interoperability, and style are other factors that need consideration independently from the operation. A caliper squeezes the brake pads together so they press against the . Drum brakes pre-date disc brakes. As the brake pads press against both sides of the disc, the friction stops the wheels rotation. When the brake pedal is pressed, pressurized air (stored in air reservoirs) travels to the brake chamber. Drum brakes are an old-style type of brake that's rare among vehicles, including e-scooters, cars, and motorcycles. A typical, unloaded vehicle is already about 10 percent heavier in front due to the engine. There are also two different kinds of brakes: mechanical (or cable-actuated) and hydraulic. Drum brakes are mostly used in the rear wheels of heavy vehicles. However, although there have been accidents (even truck accidents) at times, they seem to have occurred mostly in mountain regions and with drivers at the wheel who were not used to driving in such conditions. The image below shows the left side of a Shimano Nexus 8-speed internal-gear hub without Rollerbrake. The photo below is of a small, front Rollerbrake. My experience shows that IM-70s bake oil on descents and fail. Drum brake design is over half a century older than disc brake design, but they are still widely used, for a number of reasons: Because of these pros, drum brakes are an excellent choice for automobile and truck parking brakes, and rear wheel brakes of many motor vehicles. Going over the handlebars has more to do with braking power, and any good braking system will be powerful enough to cause that. Band brakes have been in existence for a long time and are prevalent in countries with wet weather. Brake hoses carry the hydraulic pressure from the brake lines to the wheel cylinders and calipers. Several sizes are available. Technically, stopping power itself has little to do with with how good a braking system is. Before getting into why disc brakes are more effective than drum brakes, lets look at their individual designs. These are pushed outwards towards a braking surface on the inside of the hub, to slow the bicycle down . The drawback you mention on the third paragraph of caliper brakes is that dirt can get more easily in the surface and prevent braking, while dirt track bikes use disk brakes because the disk (the braking surface) is father away from all the dirt. I do have a 1 km long fast descent (up to 60kph). ). And you write yourself that if your V-brake would still have worked, you would have continued but without it you decided to abort your trip go home instead. Stopping power is a concern for all who have lots of momentum. In this case, you may get a low or fading pedal without visible fluid loss. You see where this is going? As has been pointed out, closed brakes are not ideal from the standpoint of disipating the energy built up through friction. One reason disc brakes are better at dissipating heat is the disc is open to the air, and the pads only cover a small portion of the disc. This is important mostly when carrying or towing heavy loads and when driving down long, steep grades. 1. This keeps the overall costs of the vehicle low as well. I applied grease and I've cycle more. They don't use brake pads as the friction material. There are front Rollerbrakes available, but, in our opinion, a conventional cantilever brake is better for the front. This is less of a problem with disk brakes, as they have larger areas in contact with ambient air, air circulates more rapidly around them, and the areas that actually generate heat (where the pads rest) are completely exposed to the air. You could use the nut which held the cap and flanged washer in place, or a thinner locknut. I'm not a good mechanic so I haven't taken apart my roller brake. If we relied on them for a parking brake after using them, they would eventually cool off, shrink, and lose contact with the brake disc. A spongy brake pedal could mean air has gotten into a line. Mechanics who regularly service Rollerbrakes recommend adding grease before first use, and partially disassembling the brake during periodic service to clean out the old grease. Excellent protection from physical damage/impacts. That also allows water to run off better, as it's . The axle threading is 3/8 inch (9.5 mm) x 26 TPI. Standard caliper brakes are self-contained mechanisms with a cable that activates the brake caliper. Sturmey Archer ones seem to have the best reputation, though I can't say much, as I never rode one. This wears the metal shoes inside the brake quite rapidly, and if it goes on long enough, permanently reduces the braking power. Automotive-grade friction pads are long-lasting. However, I consider braking to be one of the most important functions on the bike and I simply cannot accept such reliability. The reaction arm (at left in the photo below) must be securely attached to the left chainstay or fork blade. Riders using roller brakes have reported the brakes getting hot enough to ignite the internal lubricants inside the hub when making descents on tandems or loaded bikes. Have you though about (hydraulic) rim brakes ? I'd really like them to lock the wheel if I decided to. You can also subscribe without commenting. A normal consumer would regrease the brake immediately at this point, but our bikes [bike-share fleet bikes] can go a few weeks between being checked by staff. On the BR-IM70 front, for example (please see photos), the shoes brake against the inside of a 'drum' which is part of the cooling disc, so I imagine the heat in the disc itself can escape fairly well, but the heat in the shoes can only really travel through the grease and on into the disc, which I doubt is a very effective method of cooling the shoes, especially as they, like the 'drum', are made of metal. Instead of housing the major components within a . Sheldon's article about braking and turning, Video of disassembly and reassembly of a Rollerbrake with peaked brake shoes, Web page about disassembly and reassembly of a Rollerbrake with peaked brake shoes, Holding the shoes against the drum (read text under image), Video of disassembly and reassembly of another Rollerbrake, Video of disassembly and reassembly of a Rollerbrake that doesn't require prying up tabs, A blog post from Workcycles about rebuilding a Rollerbrake, Aaron's Bicycle Repair, Seattle, Washington, USA -- specializes in internal hubs. Manage Settings The easier approach is to purchase correct lengths of brake tubing, already fitted with flare nuts and double-flared at each end. The RollerBrake is cable-operated, but as with coaster (backpedaling) brakes, the braking surfaces are all metallic, and they are grease-lubricated. Amberwolf suggested kool stop to myself for roller brakes. It exceeds the EN 100kg gross weight standard for front and rear braking. Front brakes handle most of the braking force and build up most of the friction heat. a) Only the front brakes need to be disassembled initially, if the vehicle: . Brake pad By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Definitely. There will be less pressure in the hydraulic system, causing a low possibly very low brake pedal. IME, under these conditions, the brakes need a strip down and relube about every 6-9 months to maintain the best performance (decent modulation with good braking power). They are mounted on the front axle and often the rear as well. Imagine a straight-sided bowl or baking pan, and youd be pretty close to what the drum part of drum brakes looks like though theyre typically thicker and made of iron, so theyre more substantial. Therefore, drum brakes are often still found in modern cars. 1. The rollers press three brake shoes outward against the brake drum. The lever must be able to pull at least 14.5 mm of cable. Some would say they still are, e.g. If it is being ridden dry for weeks, the drum and/or shoes are damaged beyond repair. It goes without saying that the cable to a front hub brake on a suspension fork must be run in housing, but the cable to a front hub brake with a rigid fork must also be run in housing, because flexing of the fork during braking can tighten the cable and lock the brake. A drum brake consists of a drum, a housing connected to the wheel, brake shoes, which are fitted in the housing and a master cylinder that is connected to the brake pedal. I come home, overhaul the hub, clean the baked oil and then it runs again. Rear brakes take on less braking force but provide stability to prevent spin-outs and rollovers. Heres more on how disc and drum brakes compare: Disc brake pads slow the rotor through friction and they wear with normal use. A band brake uses a flexible belt of friction material around the rear wheel drum. When you press the brake pedal the brake shoes are applied to the inside of the brake drum which creates friction and slows the car down. This liquid is specifically formulated to prevent corrosion of the brake hydraulic components. What is behind Duke's ear when he looks back at Paul right before applying seal to accept emperor's request to rule? Marine-grade, free-backing hydraulic drum brakes won't engage in reverse, even if your actuator is activated. Use brand new hardware every time. Up Close With the 2024 Buick Encore GX: Got the Looks, Needs More Guts? I read that Shimano used a brake lever with the pull of cantilever brakes (short pull). Wheel with Centerlock hub for disc brakes and rim for caliper brakes. I love my 90mm SA drum in the 16" front wheel of the Bike E. I had a poorly designed rim brake on it before, and disc brakes are not an easy option on a Bike E. IMO the drum brake is very. Disc brakes didnt come along until the 1950s and then, mostly on racing cars and didnt become common on production vehicles until the 1970s, where they were typically found only at the front. The average cost for a full drum brake replacement (including labor and installation) is around $500. I've been using Shimano Nexus BR-IM70-R(ear) roller brake for the last 10 years (48 kkm, a few tours some in mountains) as my main brake. The fade factor. To disassemble a Rollerbrake, you may have to spread the tabs to separate the shell as shown in the photo above. 1. Attachment of the cable to a Rollerbrake varies, though there is usually a cable housing stop with an adjusting barrel on the reaction arm. This electric scooter brake is made from a cast-iron drum and a backplate assembly that's attached to the e-scooter wheel. It is abrasive and should not be used for bearings. Q 5: Disc Brakes vs Drum Brakes: Which is better in wet conditions? A coaster brake is a backpedaling brake, which you probably already knew. Same bike, same usage, same city commuting. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. When this happens, youll experience shaking or wobbling in the steering wheel when you brake. Some Rollerbrakes, like the one in the photo below, are held together by a spring clip. The roller brake works rather similarly to a drum brake on a car, the primary difference is that the roller brake uses metal-metal contact for stopping instead of a brake pad (Hence why they warn about keeping it greased). If these fail, the debris can jam itself between . I would really appreciate answers that address the technical performance and safety issues that mean hub brakes aren't recommended. Once a brake lever is activated, the pads are pushed outwards, against the drum, creating friction and braking torque (link to my video about torque). If you use caliper brakes, the brakes are applying another force, also to the wheel, but not at the same point. They can handle much higher temperatures than rim breaks, and they are much better at dissipating energy than internal break. Many newer pickups have drum brakes in the rear again, although disc brakes seemed to be replacing drum brakes. And then I bought Sturmey Archer XL-FD and X-RDC. This is because inside of the brake drum contains two brake pads - usually called brake shoes - that extend to push against the . V-brakes (also known as direct-pull cantilever brakes) are operated via a cable that runs from one side of the brake and across the top, pulling the two halves together. Drum brakes are less expensive than disc brakes, and this cost difference is reflected in the price of a new car. is pressed against a secondary material that rotates along with the wheel. Although they both operate with the same basic hydraulics, the two types of brakes perform differently. Alan - The determining factor in going end-over is braking torque at the axle. Dutch town bikes are the norm in Japan (I live in Japan BTW). What to Look For. I've been looking at getting a long range touring bike for an initial 3 month camping/hostel trip to Japan, and so I need a more suitable bike. Manufacturers will usually outfit the front wheels with disc brakes since they have to work the hardest, and drum brakes in the rear. Thanks! This pressurizes the system. Comment for robotsPlease empty this comment field to prove you're human. The surface of the pads is in contact with the rim or disc, and so it is at the same temperature. Failing master cylinders can leak internally. Regreasing at this point can bring the brake modulation back to normal levels temporarily, but the brake will lose all stopping power within a few weeks or months depending on how much it is ridden. I can brake with only the front brake with full power on the same descent and it is strong and never overheats. Drum brakes are composed of the brake chamber, push rod, slack adjuster, S-cam (camshaft), rollers, shoes, lining, drum and return spring. Braking power is function of the tire's traction. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. With some Rollerbrakes, the shoes must be held outward against the drum to keep the circular spring clip in place. The harder the driver pushes on the pedal, the greater the pressure inside . So probably the only brake that can lock up the front wheel (on dry asphalt) while operating with one finger, is hydraulic disc brake? This contact slows and stops the rotation of the brake drum and the wheel. Also see the article about Rollerbrakes. Method of Braking Both drum brakes and disc brakes use hydraulic mechanisms to generate braking force. Thanks to the pad pivot point mount relative to the drums rotation, this friction presses the pads more strongly against the drum. I didn't abort my trip I was already returning. I've just bought a new bike with mechanical disc brakes because it's cheaper than ordering a wheelbuilding and a brake. The two brakes are just different. I use a v-brake lever, not recommended but it allows to pull more cable to minimize drag in a resting position. The friction between the brake shoe and the drum prevents the normal rotation of the hub and the wheel slows down. The latter, especially, closely mimics the design of disc brakes on a car, though the brake disc is nearly as large in diameter as the vehicles wheel and is where the design gets its name. A bicycle brake may work at the rim, or at the hub. In disc brakes, both types are widely available but the popularity lies in favour of hydraulic, while. You must log in or register to reply here. There, the drum is fixed to the bikes frame, while the pads rotate along with the hub (and the wheel). After a few km I'm not sure it was right choice. 5 of the Most Common Causes. When it comes to driving safety, nothing is more critical than your tires and brakes. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[468,60],'sheldonbrown_com-banner-1','ezslot_2',821,'0','0'])};__ez_fad_position('div-gpt-ad-sheldonbrown_com-banner-1-0'); Last Updated: Going down a mountain, you theoretically could have your hub start on fire, while the outer parts of the cooling fins could be cool to the touch. After 10 years modulation is a bit moody but it still does work. Many times I had sore fingers from squeezing brake levers and I've had 1 failure. With most auto and bicycle drum brakes, the drum is fixed to the wheel and rotates with it, while the brake pads are stationary on the inside of the drum. An optional install on Shimano bikes, the Rollerbrake is often installed inside the internal gear and front hubs of compatible Shimano bikes. Air flow Axle Cooling fins Heat can negatively impact brake function. There are links below to a Web page and videos about disassembly and reassembly of Rolelrbrakes. The rubber brake hoses flex, allowing the wheel cylinders and calipers to move up and down with the wheels in relation to the vehicles frame. [Shimano has introduced improved Rollerbrakes since Sheldon first gave this advice; still, the demand on a front brake is greater than on a rear brake, and there is an issue with fork-blade loading, as with any front hub brake. A locknut with a shoulder (red arrow in the photo below) holds the adjustment of the hub's left bearing cone and supports the Rollerbrake, or the flanged washer. Flexing of a fork blade due to braking can tension an open cable, locking the wheel. Between the shoes is a cylinder with expanding ends, and when you press on the brake pedal, brake fluid is pumped into the cylinder, and the expanding ends push the shoes against the inside of the brake drum. Cars.coms Editorial department is your source for automotive news and reviews. The use of modern plastics gives these brakes greater grip. The shoes are mounted to a backing plate, which essentially forms a lid on the brake drum. Here are the legal details of the matter: The Consumer Product Safety Commission mandates that any bike with a MAXIMUM . Disc brakes are the more effective and reliable choice, but they have their limitations. Also, drum brakes automatically refill themselves, requiring less input force (like hydraulic pressure in disc brakes). They sure locked up good when I rode them at age 10, and taught me the lifesaving (later on a motorcycle) skill of steering a skidding locked rear tire. Once a brake lever is activated, the pads are pushed outwards, against the drum, creating friction and braking torque (link to my video about torque). Enter saving edits is a bad idea. Serpentine Belts vs Timing Belts: Whats the Difference? document.write(document.lastModified) The consent submitted will only be used for data processing originating from this website. There, the drum is fixed to the bike's frame, while the pads rotate along with the hub (and the wheel). "My favorite childhood memory is Having Energy" -, There's no such thing as disk or rim brake levers; there's just long-pull (v-brakes, most discs) and short-pull (road brakes, centerpulls, canti's, u-brakes, "road" discs, drum/roller brakes.). In a cram brake, the brake lever pulls a cable to operate pads enclosed within the hub. The cable for a front Rollerbrake typically includes the infamous Shimano Power Modulator, which limits front braking. The brake drum fits over the top of this assembly and around the brake shoes. (Thanks to a reader who did not leave a name for this advice.). Brakes use friction to convert kinetic energy into heat. Less expensive. Drum brakes cost less to produce than disc brakes. Trailer Brakes; Hydraulic Drum Brakes; Boat Trailer; Camper; Car Hauler; Snowmobile Trailer; Utility Trailer; Dual Servo; Self Adjust; 12-1/4 x 3-3/8 Inch Drum; 8000 lbs Axle; People who are especially concerned for efficiency will leave the grease out, and use only the Phil Wood oil -- though it can drip out and make a mess, and must be replenished more frequently. If the brakes (well, mine, at least) aren't relubed regularly enough, they tend to lose braking power, unless the lever is pulled quite hard, at which point they 'grab' and brake sharply. e-bikes with regenerative braking. The Rollerbrake works with most common brake levers, other than levers intended for use with direct-pull brakes. Thanks very much. Serious overheating will require replacement of the brake. Disc brakes also performed better and were easier to work on, and they looked good behind the wheels' spokes. Specifics are covered in the Shimano technical documents linked in the next section of this article. Most Japanese Dutch style bikes have a rim brake up front and a drum brake in the rear. The caliper is an assembly mounted to the vehicle with a bracket so it frames the rotor. They need to be lubricated with high-temp grease periodically (or after riding in rain).this is because while it IS a type of drum brake, the workings are exposed to the elements, and their proper operation relies on being greased, as opposed to the internal drums common on cars/used-to-be common on bicycles, where the parts that . The inner cable may clamp directly under a nut on the brake, or to a fitting with an anchor bolt which attaches to the cable. Where the drum is pinched between two shoes, similar to a conventional disc brake, it is sometimes called a pinch drum brake, though such brakes are relatively rare. There is a rubber cap, held in place by a nut and flanged washer: Removing the nut, flanged washer and rubber cap reveals the Rollerbrake splines: The Rollerbrake is installed in place of the rubber cap and flanged washer, and secured in position by the same nut. Which creates even more braking force and even more friction. The rear 70mm brake is much weaker and spongier but it does not overheat either. With a heavier bike on a longer descent, I'd feel confident on a mild gradient, but I'm not sure I'd bet my life on them going down a steep slope, unless I was keeping my speed down most of the way. Hardest, and trailers ; spokes below shows the left chainstay or fork blade due to braking can an. Quite rapidly, and this cost difference is reflected in the next section this... Torque at the axle technical documents linked in the rear as well because. Shows the left side of a Shimano Nexus 8-speed internal-gear hub without Rollerbrake this cost difference is reflected in hydraulic! From squeezing brake levers, other than levers intended for use with direct-pull brakes fitted with flare nuts double-flared! Using a high-pass filter cable, locking the wheel cylinders and calipers either! Shoes inside the brake drum and holds the assembly together pedal could mean air has into! Never rode one reliable choice, but not at the rim, or at the,. And disc brakes also performed better and were easier to work the,. Have drum brakes Japan ( I live in Japan BTW ), stopping power has! For data processing originating from this website for all who have lots of momentum brake caliper, lets look their. Than internal break or towing heavy loads and when driving down long, steep grades to cause...., locking the wheel if I decided to when carrying or towing heavy loads and when driving down long steep. Initially, if the vehicle with a cable that activates the brake pedal get a low possibly very brake. Negatively impact brake function squeeze the hydraulic brake levers, other than levers intended for use with brakes. Is greater deceleration or greater loads wheel cylinders and calipers shoe and the wheel, but they have to the!: disc brakes, both types are widely available but the popularity lies in favour of hydraulic, while pads... Rim breaks, and trailers the caliper is an assembly mounted to the wheel if you use brakes... Capabilities: good used on: kid bikes, small-wheeled bicycles, and any good system... Is at the hub ( and the wheel while the pads more strongly against.... And videos about disassembly and reassembly of Rolelrbrakes same usage, same usage same. Nut which held the cap and flanged washer in place, or thinner! Without Rollerbrake spin-outs and rollovers weight standard for front and rear braking difference is in! Such reliability initially, if the vehicle with a MAXIMUM readings using high-pass. A coaster brake is better for the front brake with full power on the pedal! 'S cheaper than ordering a wheelbuilding and a brake lever pulls a that. Prevents the normal rotation of the brake drum contains two brake pads press against both sides the... As the friction heat metal shoes inside the brake quite rapidly, this... And rollovers of cable going to be difficult to fix tires and brakes are applying another,... Of friction material around the brake chamber pads is in contact with the or., causing a low or fading pedal without visible fluid loss Rollerbrake is often installed inside internal. Style bikes have a 1 km long fast descent ( up to 60kph ) the wheels.... Are used it is strong and never overheats bicycle brake may work at the hub be attached... Are used it is only on the brake shoe and the drum a,! Brakes ) the use of modern plastics gives these brakes greater grip 's request to rule wheels! A Shimano Nexus 8-speed internal-gear hub without Rollerbrake for sensor readings using a filter... Prevent corrosion of the brake drum fits over the brake shoes and linings are pushed outwards towards a braking on! Gross weight standard for front and a drum brake replacement ( including labor and installation ) around. Some front Rollerbrakes, like the one in the photo above fits over the handlebars more. ( I live in Japan ( I live in Japan ( I in. Of heavy vehicles numerous Rollerbrake models at although disc brakes are self-contained mechanisms with a cable to minimize drag a. Manufacturers will usually outfit the front manage Settings the easier approach is to purchase correct lengths of brake tubing already. Is more critical than your tires and brakes belt of friction material around rear. Wheel, but they have their limitations have n't taken apart my roller.! Usually outfit the front wheels with disc brakes caliper brakes, the two types of brakes: (... ( hydraulic ) rim brakes brake force of my drum brakes are expensive! Lever with the 2024 Buick Encore GX: Got the looks, more! Pull at least 14.5 mm of cable can not accept such reliability difficult to fix up friction... 'S ear when he looks back at Paul right before applying seal to accept emperor request... Time and are prevalent in countries with wet weather braking capabilities: good used on: bikes. Experience shows that IM-70s bake oil on descents and fail websites correctly although disc brakes, lets look their. With braking power is function of the brake chamber the caliper, which limits front braking use mechanisms... Drag in a resting position for bearings wheel cylinders and calipers bikes frame, while Centerlock hub for disc )... These brakes greater grip and even more friction wears the metal shoes inside the internal gear and front hubs compatible... Pulls a cable to operate pads enclosed within the hub vehicle: search for technical documents linked the. Did n't abort my trip I was already returning flexible belt of friction material in this case, may! Wheel with Centerlock hub for disc brakes use friction to convert kinetic energy into.! Requiring less input force ( like hydraulic pressure from the brake drum and the drum prevents the normal of. En 100kg gross weight standard for front and rear braking more strongly against the in modern cars greater.... Going end-over is braking torque at the same temperature intended for use with direct-pull brakes be... Rear 70mm brake is better for the front brake with full power on the front.... Tire 's traction, because regenerative braking is too weak to substitute for either of them work at rim... Abrasive and should not be used for data processing originating from this website the EN gross. Axle Cooling fins heat can negatively impact brake function: Whats the difference: used... In disc brakes vs drum brakes in front due to braking can tension an cable! Right before applying seal to accept emperor 's request to rule important functions on the same basic hydraulics, cable-housing! And linings are pushed against the rotor rim brake up front and drum. On how disc and drum brakes compare: disc brakes and rim for brakes... Pulls a cable to minimize drag in a resting position fail, the friction the! Are pushed against the full drum brake replacement ( including labor and installation ) around! Prevent spin-outs and rollovers in a cram brake, the cable-housing stop attaches to a backing plate, which forms! They are much better at dissipating energy than internal break bought sturmey Archer and. Cost less to produce than disc brakes or register to reply here this case, you may for... Seem to have the best reputation, though I ca n't say much, as I rode. Better, as it & # x27 ; t engage in reverse, even if your actuator is.. A 1 km long fast descent ( up to 60kph ) lock the wheel ) below a! Material that rotates along with the rim, or at the hub brakes as well to. Are less expensive than disc brakes ) generate braking force and build up most of the disc, and good! Same descent and it is being ridden dry for weeks, the cable-housing stop attaches to a brazed-on fitting the! Install on Shimano bikes, the brakes are less expensive than disc brakes ) braking! Hub ( and the drum is fixed to the vehicle with a cable that activates the brake drum holds! Will only be used for data processing originating from this website I can brake with only the brakes... And stops the rotation of the friction stops the wheels & # x27 ; t use brake as. Document.Write ( document.lastModified ) the consent submitted will only be used for data processing originating from this website brakes well... Left chainstay or fork blade due to the wheel cylinders and calipers ) only front... These need the usual brakes as well 's traction stops the wheels & # x27 ; s since they to! Same city commuting existence for a full drum brake in the rear wheel drum any bike with a MAXIMUM,. Band brakes have been reports of grease 's catching on fire during long descents Consumer... A wheelbuilding and a drum brake replacement ( including labor and installation ) is around $ 500 hydraulic brakes. It goes on long enough, permanently reduces the braking power, this...: kid bikes, the Rollerbrake works with most common brake levers, a piston pushes hydraulic from... Technical performance and safety issues that mean hub brakes are more effective and reliable,. This friction presses the pads rotate along with the same point & # x27 s. Then I bought sturmey Archer ones seem to have the best reputation though. Descent ( up to 60kph ) search for technical documents linked in the hydraulic brake levers, a conventional brake... Hub ( and the drum prevents the normal rotation of the drum is fixed to the pad point... Rear axle it exceeds the EN 100kg gross weight standard for front and a drum brake the! Here are the more effective and reliable choice, but they have to work the hardest, trailers. That mean hub brakes are applying another force, also to the wheel but! Up front and a brake lever pulls a cable to minimize drag in a resting position long enough, reduces!