Latest Model 40mm Race Head Kits

RD Race engines are proud to announce excellent results with the now modified from stock sy- 40 mm cag cylinder / barrell. these complete kits come with the mighty [ bottle neck boost port ] race spec exhaust port and timing, lowered squish area, matched widowed and lightened piston, rings, pin, clips. these kits produce 11,600 to 12,000 rpms compared to the average 8,000 to 9,000 rpms. for this kit to work you must have a timing key fitted, dual or tripple stage reeds plus a minimal type pipe such as a fatboy. the piston pin size on these kits are 10mm, plus the price for this complete kit is only $50. only 4 kits available.

give us a pm if u have any left