108cc Stroker Bore Kit #1 - TB Parts - TBW0966 - '88-11 Honda CRF XR Z 50 and 70 grom Don't forget an airbox delete

Don't forget an airbox delete arm if you still have the stock airbox

Makes its power low to mid

- Aluminum cylinder with steel sleeve

High performance race camshaft (for the Race Head only)

Available in black

108cc Stroker Bore Kit #1 - TB Parts - TBW0966 - '88-11 Honda CRF XR Z 50 and 70 grom Don't forget an airbox delete108cc Stroker Bore Kit #1 TB Parts TBW0966 '88 11 Honda CRF XR Z 50 and 70 Stroker Kit 1 This is an affordable kit that will convert your TB 88cc Race Head kit into a powerful open class 108cc engine (much more powerful than the common Chinese 107 and 125cc engines). Also, this crank was made specifically for the newer engines and thus, you will not have any fitment issues like trimming the piston skirts in order to clear the crank or the piston not