Features:_x000D_ _x000D_ Light alloy disc brake device, durable and useful. _x000D_ With strong braking force, smooth and stable control. _x000D_ Excellent heat dissipation effect. _x000D_ Allows adjust the tightness, left and right width. _x000D_ Easy to install on your bike. _x000D_ _x000D_ Specification:_x000D_ Condition: Brand New_x000D_ Item Type: Bicycle Disc Brake Device_x000D_ Material: Metal_x000D_ Optional Style: BB8(F160R140), BB8(F180R160)_x000D_ Size: Approx. 12 * 12 * 12cm / 4.7 * 4.7 * 4.7inch_x000D_ Weight: Approx. 194g_x000D_ _x000D_ Package List:_x000D_ 1 * Bicycle Disc Brake Device 1?Light alloy disc brake device, durable and useful. 2With strong braking force, smooth and stable control. 3?Excellent heat dissipation effect. 4Allows adjust the tightness, left and right width. 5Easy to install on your bike.