big bore cylinder barrel kit derbi gpr50 gpr 50 2006 2013 Kawasaki ZL1000 To replace OEM: 21121-1253 or

To replace OEM: 21121-1253 or 21121-1255

Triumph Bonneville 865cc (EFI) (2008-2014)

Yamaha YZ 400 F (1999)

This set of rear shocks is designed to replace the original shocks on a Honda XL100 for the years shown above

Kawasaki KLX 450 R (2008-2010)

big bore cylinder barrel kit derbi gpr50 gpr 50 2006 2013 Kawasaki ZL1000 To replace OEM: 21121-1253 orBrand new big bore cylinder barrel kit to fit: Derbi GPR 50 (2006). Derbi GPR 50 Racing (2006 2013). This cylinder kit has been manufactured to upgrade the original top end on a Derbi Senda to 70cc for the years and models shown above. The kit includes the cylinder barrel jug, head, piston kit and gaskets. To upgrade D50B0 or D50B1 2 stroke engine from 50cc to 70cc. Chassis Prefix: VTHGR1D1A VTHRF1A1A ZDPVXA00.