UPB-Evo-Tech Frame Kit

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**

UPB Alloy Hubs

UPB Con-Rod Kit

Heat Resistant !

Carbon Fibre Silencer Cover

Keeps the heat away from your boots.

NEW Cotter Pin Type Alloy Kick Start Assembly

Rear Chain Tensioner Kit

This kit will fit most Pre-65 bikes, comes complete with all fixings/spring bushes etc & S3 chain block available in std alloy finish or in orange or black anodising nylon block available in orange or black.

(Add extra £5 for anodised arm)

To fit big bore cylinders 70mm bore

Includes a range of gaskets.

Available for 230cc and 250cc engines.

Additional extra thickness rocker cover gaskets for Finned Rocker Box Covers

For big bore cylinders

For big bore cylinders

Re-manufactured to original dimensions.

The l/hand spindle will fit all year engines, the r/hand will only fit twin bearing engines.