: Type: Double Action Size: F: 160mm; R: 140 / 160mm Mode: Mechanical disc brake Installation size: for standard , front 70mm, rear 34mm. Single-sided drive / double-sided drive two-wire disc brake clamps Front brake: with adapter suitable for 160mm disc Rear brake: with adapter for 160MM disc / remove adapter can be suitable for 140MM disc Double-sided mechanical disc synchronous drive High brake and precision control Easy to adjust installation Adjustment knob, can be manually adjusted, left brake design High quality Radiant / road disc brak / cyclocross bike brake disc Parameter: 44mm 6-bolt disc brake rotor Weight: 160mm (140g) Colour: black Material: aluminum alloy Package Contents: 1 Pair * Bike disc brake sets Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.