12.40 cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle.
Same size and exhaust port as O.S. .61
Supplied with ASP quiet silencer.
Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"I am now an avid ASP fan after that .75 you sent me......... it's superb!!! " - Customer comment