Sram X4 Rear Derailleur Hybrid Bikes Compatible with GS cage rear

Compatible with GS cage rear derailleurs

Elite-level trim optimises foam padding for added lightweight comfort

these wheels are compatible with a 12 x 100 front axle and a 12 x 142 rear axle

Power Transfer & Pressure Relief

and a Giant Wheel System lets you run tubeless tyres up to 28mm for a smoother ride quality and reduced risk of flats

Sram X4 Rear Derailleur Hybrid Bikes Compatible with GS cage rearSHIFTING PERFORMANCE Leveraging the legendary history of SRAM shifting, the X4 rear derailleur provides great shifting performance. SPECIFICATIONS Speed (RD): 9 8 7s Cable pull ratio: 1: 1 Cage (RD): Long Max tooth: 34 Pulley bearings material: Steel Cage material (RD): Aluminium