TBparts 108cc/51mm Stroker Crank Upgrade Kit. This kit is for customers who already have our complete 88cc Race Head kit on their 4 speed CT70H, SL70, and XL70. Also for 81 & up ATC70 and 3 speed 80-81 CT70 and want to upgrade to 108cc. Stroker Cranks add big power to our bore kits by increasing the displacement and adding compression.

Note: Only for use with 4 speed CT70H, SL70, and XL70. Also for 81 & up ATC70 and 3 speed 80-81 CT70

Installation Note: Stroker crank requires use of the 12v piston and high Volume Oil pump w/shaft.

Kit Contents by Part Number: TBW0713, TBW0365, TBW0225, TBW0287, TBW0334, TBW0206