« Reply #19 on: December 29, 2011, 09:44:05 pm »
Here's an early, mid fifties ESO MX. It makes an interesting contrast to the mid sixties version shown previously.
What emerges from showing these ESOs is that it debunks the common misconception that the scrambler motor evolved from the speedway engine. In fact, the reverse is what happened, the ESO unit MX engine preceded the speedway motor by nearly 10 years.
« Last Edit: December 29, 2011, 09:47:52 pm by firko »
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'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha