Surly Track Cog 1/8'' X 15t Silver CheckoutTitle=RockShox Deluxe Ultimate RCT Rear Shock - 185 x 52.5mm Wolf Tooth Centerlock Rotor Lockrings

Wolf Tooth Centerlock Rotor Lockrings – External Spline secure centerlock rotors on centerlock hubs

provides an optimal balance of rolling efficiency and longevity to conquer your next journey

Legendary Ruffian Diamondized Pattern

Rear Axle 12mm Thru x 148mmCassette Body Type Shimano Micro SplineColor PurpleSkewer Included NoBearing Type Sealed CartridgeWeight 292Designed for ebike YesDefined Color PurpleSpoke Interface J-Bendkeyword search Color Pop PurpleHub Drilling 32Hub/Brake Compatibility 6-Bolt Disc

Surly Track Cog 1/8'' X 15t Silver CheckoutTitle=RockShox Deluxe Ultimate RCT Rear Shock - 185 x 52.5mm Wolf Tooth Centerlock Rotor LockringsSurly track cogs are threaded the same as a BMX freewheel (1. 375 x 24 tpi right hand threads). This means that they will fit on single speed rear hubs as well as BMX freewheel hubs but this application is not recommended. Track cogs are meant to work on track hubs only. 415 hardened chromoly steel 1. 375" x 24 tpi Photo for color and material reference only Tooth Count 15 Size 1 8''