Possible Future shifter engine? Feb 20, 2010 20:07:25 GMT -8 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Ricky Worley on Feb 20, 2010 20:07:25 GMT -8 www.sodikart.com/gb/kart/rental-karts/sodi-kart-rx250,3,135.htmlAdd a gearbox to that engine and this could be a decent 4-stroke shifter. Or a 4-stroke equivalent to a rotax. I wonder who makes it.