Later during the 1980 season Yamaha brought the modified Yamaha 0W48R into action. "R" eversed = (the two outer cylinders were reversed). The improved exhaust layout resulted in 7 ps +. The first 0W48R had the 0W45 frame but later a completely new aluminium one was built. So Kenny rode 3 different bikes during that hectic 1980 year !

Yamaha 0W48R, 1980

(Author: Adil Jal Darukhanawala, Source: Overdrive, March 2001)

The 1975 version of the TZ500 with the monoshock rear suspension. Note the Finnish flagon the fairing. It signified the bike as that used by Giacomo Agostini's Finnish team-mate - Teuvo Lansivouri.