Product parameters: Material: Stainless steel Size: diameter 160mm, 180mm, 203mm Pitch: The center distance to the hole is 44mm Weight: about 105-145g Features: reliable brake, floating structure allows some free longitudinal expansion The gap between the friction surfaces eliminates internal traction.Therefore, the brake is made more stable and reliable.Suitable for road bikes and mountain bikes. The double-sided height difference is no more than 3mm, easy to assemble: 6 mounting bolts for easy mounting on the disc brake frame and fork.It has good wear resistance, fast ventilation and good heat dissipation.High quality, lightweight, high strength, very durable and reduces bearing damage.  When the high-speed riding brakes for a long time or brakes heavily, the disc will be heated by high temperature and cause thermal expansion. The floating disc separates the friction surface of the brake disc from the inner bracket, and the middle is connected by a special non-rigid structure. That is, the floating joint. This makes the friction surface and the bracket become relatively independent force-receiving surfaces. When the friction surface is thermally expanded, the floating structure allows the friction surface to have a certain free longitudinal expansion space, thus eliminating the internal pull between the bracket and the bracket. The stress condition, so that the friction surface will not be deformed due to uneven heating, so that the brake is more stable and reliable. The common disc, the outer edge of the high temperature expansion and the middle part with lower temperature are integrated, which will produce a strong The internal pulling stress, in severe cases, causes the dish surface to be distorted laterally.
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