Derailleur Parts

Shimano Shimano Ultegra FD-6800 Front Derailleur Clamp Shim, 31.8mm to 28.6mm

SRAM SRAM Red eTap Front Derailleur Spare Parts Kit

Wolf Tooth Components Wolf Tooth Tanpan: 10-Speed Conversion

Shimano Shimano Tiagra RD-4700 10-Speed Rear Derailleur Pulley Set 

Shimano Shimano Ultegra RD-6800 11-Speed Rear Derailleur Pulley Set: Version 2

Shimano Shimano GRX RD-RX810 Rear Derailleur Tension and Guide Pulley Set

Shimano Shimano Ultegra RD-R8000 11-Speed Rear Derailleur Pulley Set 

These adapters clamp on to the seat tube so you can use your braze-on derailleur on a conventional frame. Available in three common seat tube sizes with 20mm of vertical adjustability.

Shimano Dura-Ace R9150 Di2 Front Derailleur Braze-on Adaptor 28.6/31.8mm

SRAM X-Sync Pulley Set (Fits X01, X01DH, X1, GX 1x11, NX, Force CX1, Force 1, Rival 1, Apex 1 Derailleurs)

Shimano Altus M280, Tourney TX800 7/8-Speed 13t Rear Derailleur Pulley Set

SRAM Derailleur Pulley Set for Force/ Rival/ Apex Rear