AL-KO offers 2 styles of mechanical trailer braking systems, mechanical lever drum brakes and mechanical lever disc brakes. We use cookies for quick energy and to ensure that we give you the best experience on our website. You need an Allen wrench on … Wind out the cable barrel adjuster until the bite point on the brake lever feels comfortable. Adjust both the outside and inside parts simultaneously. Most mechanical disc brakes only have a single moving piston, although some high-performance brakes (like the TRP Spyre/Spyke range) feature twin pistons which have their own system for brake pad alignment. The second style has a movable pad, which has adjustability independent of the caliper arm. … Not hydro but high-end mechanical brakes with the Avid BB7 Road SL brakes on the new 2015 Bianchi Zolder cyclocross bike. To that end, we’re featuring a helpful and popular piece by Jason Gardner on setting up your mechanical disc brakes from a few seasons ago. We've got a few openings we're looking to fill soon. Here we will show how to adjust the mechanical disc brakes. The second pad, the outboard, is the moving pad. This should give you a good, neutral lever throw with the best possible braking performance. Loosen the mounting bolts. Remove the rubber band and the piece of card. Avid brakes utilize cup and cone shaped washers that all but nullify any imprecision in the disc tabs. With the cable clamped you can then use the outboard pad adjuster to move the pad as close to the rotor as possible without it rubbing. With the brake attached to the bike, loosen the caliper mounting bolts. There are two styles of outboard, movable pads. They focused on the brakes having the same feel and performance as a good v-brake set up, but the all condition performance of a disc brake, but without the higher learning curve. This is the fixed pad - Shimano brakes typically use an allen-headed bolt, whereas Avid’s BB5/BB7 have a large red dial, Slightly loosen the bolts holding the main body of the caliper to the frame/fork/adapter. (A hydraulic brake replaces a cable with hydraulic lines, and adds a master cylinder at the lever). As you’re adjusting your disc brakes, try not to touch the edge of the disc. My bike has Shimano M415 mechanical disc brakes. Back off the inboard pad until it no longer rubs. This is an adjustment of the space between the brake lever and handlebar. Simply loosen your brake caliper bolts and pull the brake lever. Then back out the inboard pad adjuster just far enough that it no longer rubs the rotor. Retract the inboard fixed brake pad away from the rotor (i.e. Interbike 2014 © Cyclocross Magazine. Enjoying our comprehensive coverage of every title race? A less common mounting system is the post mount. A rubbing or underperforming disc brake can often make a ride frustrating. © Jason Gardner. Tighten the hex bolt lightly on both sides. Here’s how to get it right. We are trying to achieve a brake in which the brake pads are aligned squarely with the rotor and the inboard pad protrudes far enough into the caliper to provide full clamping of the rotor between the two pads. Just a light actuation is what you’re looking for. Cable disc brakes are less tricky to align and maintain than hydraulic disc brakes. This is the fixed pad - Shimano brakes typically use an allen-headed bolt, whereas Avid’s BB5/BB7 have a large red dial; Slightly loosen the bolts holding the main body of the caliper to the frame/fork/adapter. Lighter front shift action and refined ergonomic shape sweeten the deal. I have the Shimano no name m416 mechanical disc brakes they came stock on my Brodie. SHIMANO ULTEGRA - Hydraulic Disc Brake - DUAL CONTROL LEVER - SERVOWAVE - 11-speed The SHIMANO ULTEGRA R8020 series shifters bring greater rider control in all conditions thanks to SHIMANO's category-leading hydraulic disc brakes. As your pads wear, simply use the pad adjusters to compensate for the wear. IS mounts are difficult and time-consuming to align perfectly. Just enough to allow you to slide the caliper around, Slide the caliper body around until the disc rotor is passing through the centre of the gap in the caliper (not the centre of the gap between the pads), Tighten the caliper body bolts back up carefully. However, poorly aligned disc brakes can easily ruin the feel & performance of your bike. When the pad is centered, tighten the hex bolt securely. Apart from all these benefits though, the tighter tolerances associated with disc brakes lend themselves more easily to poor adjustment, and improper adjustment on disc brakes can ruin your race more easily than a poorly adjusted cantilever. Your final adjustment should yield a solid feeling brake in which the brake pads squarely contact the rotor at the center of the brake caliper. All brake adjustment can be accomplished with the cable disconnected. Correct Adjustment of AL-KO International Mechanical Brakes . Jason Gardner. Loosen the mounting bolts and try it again. The down side is these poor conditions happen a lot easier to disc brakes than to cantilevers. If your mechanical disc brakes have recently lost power, or the levers pull too close to the bar, you can easily adjust them for better performance. It's a very methodical process, and is far less frustrating for novice mechanics than hydraulic disc brakes. 3.While holding the turn buckle, turn the adjusting wheel to either shorten or … The rotor should be sitting center in the gap or slightly to the outboard side. The caliper, the actual brake bolted to the bike, is made up of two brake pads, inboard and outboard, between which the rotor will be clamped to provide the braking. © Jason Gardner. Mechanical vs hydraulic disc brakes Although not all disc brakes function in the same way, the advantages described above are to a greater extent accurate for all disc brakes. If the position of the caliper is too far outboard, such that you have to back out the inboard pad too far to stop the rubbing, then you will need to repeat your steps. Do not clamp the cable at this point. For less than just one race entry fee, you can get months of ‘cross bliss, without the suffering. Both styles use an over ride coupling fitted with a brake plate attached to a cable that connects the brake lever at the wheels. Before you adjust the brake, inspect the rotor and pads for any contaminants. By loosening them, you can move the caliper slightly from side to side. Although hydraulic disc brakes are now popular and standard equipment on many mid-range and higher cyclocross and gravel bikes, many of us still ride bikes with mechanical disc brakes and appreciate their advantages. Back off the outboard pad adjuster entirely. Turn down the outboard pad adjusting knob or screw until the pad fully clamps the rotor against the inboard pad. Between the brake pads and disc, brake motor adjusts the clearances. The mounting bolts of the post mount are parallel with … Hold the disc by placing your thumb and fingers on the disc’s 2 flat sides. Shimano brakes, however, are only adjustable side to side. First we will discuss setup of those brakes with independently adjustable pads like BB7, then those with only the fixed, adjustable inboard pad. Live Help Basic knowledge of the bicycle mechanical disc brake. If you do get a cut, stop and wash it with soap. Van Aert Victorious at World Cup Overijse, Van der Poel Faces Technical Difficulties – Full Results, Alvarado Takes World Cup Overijse, Brand Wraps Up Series Overall – Report, Results, X²0 Badkamers Trofee – Flandriencross Hamme Results: Elite Men, Ask the Pro: Corey Coogan Cisek on Training Between Races, Last-Minute Gift Ideas for the Cyclist…Or Essentials for Yourself! If the inboard pad is too far out, when you hit the brake, the outboard pad will clamp the rotor against the caliper instead of the brake pad. Also, make sure you purchase the road bike version, as its leverage is designed specifically with the leverage of road bike levers. On Shimano brakes, if you are having difficulties with the rotor touching the top of one pad and the bottom of another, then you may likely need to have your disc tabs faced. Disc brake terms. Consider a donation to support CXM. They can be more powerful with more control than rim rim brakes and they are not so nearly affected by water and mud. See a qualified mechanic with proper tools for this work. We also share information about your use of our site with our social media, With rim brakes your calipers used to live on the View our, Mechanical disc brakes (aka cable disc brakes), Torque wrench with a set of allen bits (4mm, 5mm, or 6mm usually), Stiff card (old greetings card or business card), Wind the barrel adjusters all the way in – there will be one on the brake lever and (depending on model) one on the caliper, Retract the inboard fixed brake pad away from the rotor (i.e. Disc brakes—on a road bike, mountain bike, or cyclocross bike—might seem intimidating, but Perejmybida says they’re actually the easiest to adjust.. Subscribe to Cyclocross Magazine today, and you'll receive in-depth content on riders, tech, reviews, and behind-the-scenes look at races. There are mechanical disc brakes and hydraulic (oil) disc brakes. Parts: Rotor, Calliper, Cable, Brake pads Screws: 1 and 2, for mounting the calliper. To achieve this the caliper screws on the side of the caliper are loosened with use of a 5mm Allen key. In severe cases you’ll be fighting every pedal stroke as your brakes slow you down, and your pads will wear out quickly and unevenly. The first thing to set when adjusting your disc brakes, is the position of the caliper itself. Their benefits are well known; tire clearance is now only a matter of the frame. 7 Reasons It Might Be a Gravel Tire, Ask the Mechanics: Bearing, Pulley and Bottom Bracket Maintenance, Mechanical Monday: Check Out the Dollar Store to Round Out Your ‘Cross Maintenance Kit, Mechanical Monday: Packing Your Bag for the Unexpected on Race Day, Ask the Mechanics: Getting the Best Performance from Your Disc Brakes, Gravel Bike on the Cheap: Resurrecting “Gravel Bikes” from the 60s, 70s and 80s, Five Top Pavé Tires for Your Own Raid on Roubaix, Sunday School: Finding Truth in Tire Width and Volume by Relearning Our Numbers, Units and ABCs. This arm contains the cable clamping and rotates when the brake lever is depressed. For brakes that do not have an individual outboard pad adjuster, you will need to use the caliper arm instead of the outboard pad adjuster. advertising and analytics partners. eval(ez_write_tag([[336,280],'cxmagazine_com-banner-1','ezslot_1',124,'0','0']));I know this was a long one, but proper setup is critical to getting all the benefits that this wonderful world of disc brakes has to offer. There is no denying that disc brakes are the dominant stock brake type among cyclocross and gravel bikes today, and even the most affordable bikes typically come with mechanical disc brakes. After a couple attempts though, you should get it quite easily. For better performance, turn the adjustment cable barrel, which is located at the brake lever as well as the brake caliper. 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