Wolf Tooth Single Speed Aluminum Cog - 19t Compatible with 3/32" Chains Blue compatibility-2021-on Transfer Hybrid steel driver is perfect

Hybrid steel driver is perfect for E-Bikes and high torque applications

38mm chassis for increased stiffness and rider confidence

Riders also need high-precision control while descending

630 / 27" Tire Type Clincher Hub/Brake Compatibility Rim Brake

5 3 4 5 6mm hex T10 T15 T25 Torx #2 Phillips bits

Wolf Tooth Single Speed Aluminum Cog - 19t Compatible with 3/32" Chains Blue compatibility-2021-on Transfer Hybrid steel driver is perfectThese Wolf Tooth aluminum single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners. Crafted with strong and lightweight premium 7075 T6 aluminum Optimized for use with 91011 speed chains but suitable for use with some 12 speed chains Reversible and 4. 5mm wide at the base to help prevent cog from damaging your freehub body Fits Shimano Hyperglide style freehub splines Not compatible with Shimano Microspline