This is the specially modified traxxas 3.3 crankshaft. The same one found in the RCR MAX MOD 3.3 mod engine.
This crankshaft has had extensive work including timing changes, lightened, double turbo cut, balanced and flowed.
This is drop in performance for your 3.3 engine for a big difference from stock providing faster spool up time, more power and higher RPM and top speed.
 
We offer these cranks with NO PIN, for bumpstart and With pin, for pullstart or EZ start .