Cassettes, Chains, Rims & Wheels IRD XC-Pro Thumbshifters $159.99 IRD Barrel Adjuster $18.99 Bottom Brackets - ISIS and Square Taper Chains Cassettes Chainrings (7075 T6 aluminum) Compact Triplelizer Chainring $59.99 Front Derailleurs Rims Wheel Skewers Defiant Freewheels, 7, 6, and 5 speeds $49.99 YOKOZUNA Premium Shift Cable and Housing Products IRD Shifter Perch $49.99 IRD Defiant 144 Track Crank $159.99