Hope Tech 4 V4 Disc Brake and Lever Set - Rear Hydraulic Post Mount Silver Maximum Tire Clearance (Fork)-38 }Surly Stainless Steel Track Cog

}Surly Stainless Steel Track Cog Lockring 1

Mounts in place of derailleur

Brake Track None Color Black Defined Color Black Hub Drilling 32 ISO Diameter 622 / Road / 29" Manufacturer Spec ERD (mm) 605 Rim Center Offset (mm) 0 Rim Material Alloy Rim Width (Internal) 30 Tire Type Tubeless Ready Valve Presta Wheel Size 29"

Open end allows use of bar ends also while looking good

Bearing Type Cartridge Color Matte Black Crown Race 40 Defined Color Black S

Hope Tech 4 V4 Disc Brake and Lever Set - Rear Hydraulic Post Mount Silver Maximum Tire Clearance (Fork)-38 }Surly Stainless Steel Track CogHope Tech 4 V4 Disc Brake and Lever Set Rear Hydraulic Post Mount Silver. The Hope Tech 4 V4 Disc Brake & Lever Set was designed with downhill riding in mind. It features upgraded technology and premium engineering to provide more braking power than previous systems. 30% power increase from Tech 3 Light lever action for reduced fatigue and increased feel Hinged clamp for easy installation Ball bearing pivot Reduced friction internal sealing Genuine