●HYBRID BRAKE AND EASY TO INSTALL AND FIX-The Juin Tech F1 isnt a straightforward mechanical disc brake though, its a hybrid or cable-operated hydraulic.This means you can use them with just about any standard MTB or road-style integrated shifters -even ones designed for use with rim brakes. ●POWERFUL BRAKE-Its an appealingl solution for anyone looking to gain some of the much vaunted advantages of hydraulic braking - increased power and better modulation - without needing to replace an entire groupset. ●HIGH QUALITY AND LIGHTWEIGHT-Juin Tech has tested these brakes in the 3 Peaks Cyclocross race, outstanding braking performance and stopping power.Theyre lightweight at just about 148g and 24g less than the Shimano mechanical units. ●SPECIFICATION-Caliper: Forged Aluminum Rotor size :160mm x 2pcs For Flat Mount system use For C-brake and shifter lever use.Using non-corrosive and high stability mineral oil.Dual-Piston brake caliper. ●VARIOUS COLORS AND COMPATIBILITY-Black / Red / Gray colors are available and can be used on Flat-mount Road/Cyclocross/Gravel/E-Bike/Folding bike bicycles etc.