Crankcase - 4.125" Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna Fork Braces drilled and laser cut for

drilled and laser cut for optimum friction & durability

then polished smooth for a sculpted smooth finish

Features equal-length stepped headpipes from 1-3/4" into 2" and then 2-1/8"

and springs (unless noted)

carburetor jetting and overheating

Crankcase - 4.125" Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna Fork Braces drilled and laser cut forCrankcase 4. 125" Bore w Stock Bolt Pattern Wrinkle Black Dyna 4. 125" bore crankcase can be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger; thicker wall sections and superior 356 T6 aircraft grade aluminum Tough powder coat finishes Reinforced front motor mount for extra strength Timken sprocket shaft bearing Strong enough for the most demanding applications Clearanced for strokes up to 4 3