thanks, Chris Are disc brake rotor bolts a standard size? Disc brakes are one of the main types of bicycle braking systems. FEATURES EXPLAINED CALIPER. The difference in weight depends heavily on the rotor itself. The mount type for the disc brake calliper is Post Mount (which should be 74 mm spacing between the mounts, center-to-center), which is the most common standard for mountain bikes. This is the size of the rotor in millimeters. Likewise, if you’re a climber, the additional grams saved by running smaller rotors might be worth it. Should all disc bikes use a pair of 160mm rotors? It is not uncommon to spec a larger diameter disc rotor for the front and a standard 6 inch rotor for the back. :: 203mm Suited for Downhill use and large riders who see tough conditions. Do I need to change any components besides the disc itself and an adapter for the caliper? If you have a front flat mount brake, it will use a 140mm or 160mm rotor, only. Consult your retailer for the proper rotor sizes for your bicycle. If you’re pushing 90kg (200lb) you might want to consider larger rotors, depending on how you answer the next three questions. You can’t have a discussion about proper rotor size without knowing what type of bike you’re talking about. When the brakes are appled, abrasive friction is prevalent during lower temperature braking. Rotor diameter plays a critical role in helping you getting the most out of your brakes, The 150mm-travel Enduro 29 has 200mm front and 180mm rear rotors to bring it to a halt, This 650b Norco Sight has 180mm front and 160mm rear brake rotors, a common setup for trail and all-mountain bikes, Ten tips to stay motivated through winter, Trail Tech: Mountain bike tire pressure – all you need to know. Disc brakes can be hydraulic or cable driven. Our mission is to provide the global brake community with the latest coverage of news & insights from around the industry. Free shipping. 6. Braking forces generate heat on the rotor and in the disc brake pads - a larger rotor helps dissipate heat more effectively and this preserves your brake pads and improves performance. I currently have a 160mm 6-bolt disc installed, and the caliper is mounted on a 160mm post mount. O/D ThMin Th Height Front Bore Rear Bore Fixing Holes Location Holes Holes PCD BRAKE DISC SIZE CHART KBD 001 Alfa Romeo, Fiat, Lancia F S 240.00 11.00 9.20 39.50 59.00 124.00 4.00 2.00 98.00 KBD 003 Ford, Westfield F S 240.00 10.00 9.00 58.00 64.00 136.00 4.00 1.00 108.00 KBD 004 Vauxhall F S 236.00 12.70 11.50 41.00 60.00 120.00 4.00 3.00 100.00 KBD 005 Vauxhall F S 236.00 … Risk: Continued operation at or below Rotor Minimum Thickness can lead to Brake system failure. Brake Rotor Size Chart Hoskin. 160 mm 6-Bolt. $35.00. Great for a gravel bike, not ideal for a ripping fast mountain bike or bike packing bike that will have lots of extra weight on it. They’re more exposed to trail hazards than smaller diameter rotors. This all-mountain, 650b Norco Sight has 180mm front and 160mm rear brake rotors. Then aero race bikes got them, which again made sense. Bicycle Brake superiority: Disc or Rim in Tour de France, Atotech Launches DynaSmart® Plating Line for Corrosion-Resistant Coatings, Champion Oil’s New Disc Brake Wheel Bearing Grease, Mercedes-Benz Recalls Postal Vans Due to Brake-Line Issue, Bendix at 90: Building on History to Craft a Safer Tomorrow. Discs are the new normal, and with that maturation has come a settlement on certain standards. For years, running rotors that measured 200 or 203mm in diameter was the norm for downhill bikes, while 160-180mm was the typical trail bike rotor size. A 180 mm SRAM Centerline rotor weighs about 151 g. The 200 mm version is about 37% heavier at 207 g. The difference between a 200 mm rotor and a 220 mm rotor (223 g) is only 11.5%. Lighter riders and weight weenies might opt to run a 140mm rear rotor for XC racing. Rotor size is limited currently to 160mm. “In my opinion a pair of 140mm rotors look nicest, but as many riders are over 80kg there is a chance braking performance can be affected in certain conditions,” said Giacomo Sartore, group set product manager at Campagnolo. Reputation: Join Date Feb 2005 Posts 689. You've been subscribed to our newsletter. Go straight to 220 mm and the increase is 24%. For example, flat-mount, where the brake caliper sits directly on a chainstay or fork blade, as opposed to post mount, has been universally adopted. (brake lever), SM-RT53 / RT51 (rotor) and Shimano pad unit (B01S). Their more consistent performance was a natural fit on rough roads in often changeable weather conditions. Our mission is to provide the global brake community with the latest news & headlines from around the industry. New Shimano SLX Deore SM-RT66 Bicycle MTB Bike 6-Bolt Disc Brake Rotor - 160mm. • If the front brake is applied too strongly, the wheel may lock and the bicycle may fall forward, and serious injury may result. The frame I will be building on Will either be a tout terrain grande route from Peter white cycles or a Gunnar grande disc. If so what size? They do a better job of displacing heat generated from braking, and can provide better modulation. This size is very popular for the front disc paired with a 160mm rear. The caliper houses the pistons that push the brake pads into the rotor. However, there is an area where a certain amount of debate still exists, and that is around the size of disc rotors. 160- mm 6-Bolt Bicycle Disc Rotors. Question: I’m building up a 29er hardtail and am swapping components over from my old 26in frame. Rotors come as small as 140 millimeters in diameter for road and cyclocross applications, all the way up to 205mm for downhill mountain biking. “This is why we recommend either a pair of 160mm rotors or 160mm front, 140mm rear. Be sure of the type of bicycle you want: Mountain bike, city bike or road bike. There are two upgrade SIZE options with these oversize bicycle brake disc conversion kits – 160/165mm-180mm (medium power upgrade) and 160/165mm 203mm (mega power upgrade) and the option of full circle profile or new lightweight contoured profile.These mount on most standard 6 bolt wheel hubs and together with the bracket provided, which again fits most 50mm centre forks, your … Subscribe I want to put some avid bb7 brakes on the bike and I want to know what size rotors to get. Subscribe today and get the next 3 issues of your favourite cycling magazine for just £5! Disc rotor to hub 18–35 (M5 bolts) 350 (M965 rotor locking) Hayes® 50 Avid® 55 Magura® 34 Caliper mount 53–69 Avid® 80–90 Magura® 51 Hydraulic hose fittings 44–60 Last but not least, if you endure the climbs to enjoy the descents you might benefit from larger rotors to keep your speed in check when you’re hanging it all out. You can unsubscribe at any time. Also, which adapter would I need? Weight is not such an issue with aero bikes, and disc brakes opened opportunities for aerodynamic development. Besides this, it is a lightweight yet highly durable rotor that will serve you better. Automotive Our bike disc rotor range includes Tektro, TRP and RWD disc brake rotors suitable for different applications. The disc rotor size is 160mm as engraved on the rotor (160mm is a common size rotor). Brake Rotors The brake disc, or rotor, is the surface that is contacted by the pads. Cable Disc Brakes,as the name implies work with a cable attached to the brake lever on the handle bars. Written by Kupis on March 12, 2020 in Chart. Shimano's road disc brake system has been designed for use with 140mm or 160mm rotors, the idea being that users can choose the size to suit their weight and intended use. But there are several other factors to consider as well. These are usually the situations where it pays to spend a bit of time assessing your needs, to make sure you have enough brake for where, what, and how you ride. You can read about the different bike types from here. Special brake pads, held in place by the braking mechanism, squeeze the rotor causing the wheel to slow down. I'm thinking 160 on the front and 140 on the rear? “When brake caliper pistons are applied to larger rotors, due to the fact that they are further away from the rotating axle, they provide greater leverage and torque to stop the rotation,” he said. For example, do you ride a cross-country bike like an all-mountain bike? I want to upgrade to a 180mm front rotor. 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