Lot details Registration No: N/A Frame No: 430-991106 Engine No: DS-7 cc: 250 MOT Expiry Date: N/A
During the 1972 season Yamaha's works rider's campaigned machines in the 250cc and 350cc classes that utilised liquid cooling and which acted as prototypes for the following season's production racers. The liquid cooling employed on the new TZ's sought to address the Achilles heel of the TR3/TD3 air cooled racers - their propensity to "nip-up" - and established a line of racing machinery whose success is unparalleled in motorcycle road racing history. The "A" series models newly developed engine offered a claimed 50bhp at 10,500 rpm for the 250 and 60bhp at 10,000 rpm for the larger model with both machines being equipped with a six speed gearbox. The cycle parts were essentially the same as those successfully employed by the previous air-cooled racers with a steel duplex cradle frame, telescopic front forks and twin rear shock absorbers. A double sided twin leading shoe drum brake graced the front end and was complimented by a full width drum in the rear. The new models quickly demonstrated their competitiveness even at the highest level.
The very early (number 6) TZ250 offered has formed part of a museum collection in Japan and is offered in original unrestored condition. The original front hub has been fitted since the machine was photographed for the catalogue.
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