General 5 star TE. Stock v1L oversize (40.6mm) piston from 1977. BRN 50cc 5 port case matched, stock high comp head, 0.35mm malossi reeds (reed block intake rounded and angled). 11x41 gearing, 52.7mph on flats, 40+ on hills, all kinds of low end. Made some aluminum brackets under the seat to attach spare gas tanks, she only goes about 40 miles on the 0.7 gallon tank.