Brand 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.