Has your cylinder run out of bore oversize ?

Then we can convert to a modern type piston high silicone content & modern Japanese piston rings, stop that 200cc Cub from smoking!

No need to convert the crankcases or cylinder head, also available in oversizes.

**Please note we need your old cylinder in exchange**

** These parts can be purchased seperately**

Available for 230cc and 250cc engines.

Heavyweight crankshaft assembly with all new spindles, new crank pin and new forged and polished conrod with needle roller. Big end new, little end with 16mm bush, all crankshafts are balanced.

For big bore cylinders