STREET AVENGER 85 42mm stroke crank = 89CC

42mm stroke cranks are here now!      This ad is for the Street version crank with 4 balance holes per flywheel giving approx. 52% BALANCE FACTOR.    FYI:  Due to Tariff increases it now cost 78 cents per dollar of China goods to import  just in US Customs Declaration only, not even including ocean freight and truck shipping cost from port.  We had to pay $3270 tariff to Uncle Sam just to get you these cranks plus shipping charges.  This is a 2mm longer stroke crank for your SkyHawk Avenger, Olyin Avenger 85 or YD 85 engine. It is accomplished by moving the crank conn rod pin outboard by 1mm.  Makes 89cc displacement out of a stock Avenger 85cc engine.    Comes with a extra cylinder bottom gasket to move the cylinder upward by 1mm.   With just this crank change turns 40mm stroke 85cc into 89cc.  How much more power difference will it make? Only God Knows!   We have no dyno and YuanDong didn't tell us the performance curve!  Made for a 12mm diameter WRIST PIN.  NOTE:   42mm stroke Crank