Wheels Manufacturing Shim for 1-1/4" Derailleur on 1-1/8" Seat Tube Brake Mount (Fork)-Canti Studs Chainrings are compatible with SRAM

Chainrings are compatible with SRAM 11 speed chains and YAW front derailleurs

} Extended inner race bearings (suspension pivots)

Aluminum: forged

SRAM 10 and 11 speed cassettes with 11 tooth cogs have the smallest cog located behind the cassette in the packaging

The forged and polished wrenches feature a convenient combination of six point 72-tooth ratchet box-end and offset open-end

Wheels Manufacturing Shim for 1-1/4" Derailleur on 1-1/8" Seat Tube Brake Mount (Fork)-Canti Studs Chainrings are compatible with SRAMWheels Manufacturing Shim for 1 1 4" Derailleur on 1 1 8" Seat Tube. Derailleur shims for adapting front derailleur clamps to a different sized frame seat tube. Derailleur = the size of the clamp on the front derailleur you have Frame = the size of the seat tube the derailleur plus shim will fit TECH SPECS Front Derailleur Clamp 28. 6 (1 1 8") Front Derailleur Clamp 31. 8 (1 1 4")