Sram GX 11 Speed Rear Derailleur SRAM rear or both in any

rear or both in any condition from winter mud to summer dust

it's been widely imitated but never improved upon

Deore XT crank arms (set of two) for Shimano EP8 and EP801 motors

Frame: 6061-T6 aluminium

XS -  37-40cm

Sram GX 11 Speed Rear Derailleur SRAM rear or both in anyThe Sram GX 11 Speed rear derailleur is engineered for smooth, reliable shifting actionfrom the larger upper pulley offset to the 12 tooth X SYNC pulley wheels. By eliminating unwanted chain movement, X HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK technology, wheel removal and installation are easier than ever.