The Honda NS500 was a GP class motorcycle powered by a 500cc V3 two-stroke, built between 1982 and 1983 as a replacement for the technically advanced but unsuccessful NR500 four-stroke. The bike went against Honda’s preference for four-stroke engines but proved to be very effective and soon went on to take the 1983 500cc Championship with rider Freddie Spencer on board. Spencer was able to use the lower weight and superior handling of the NS500 to achieve higher corner speeds, and to get on the power earlier on corner exit.
The NS500 was replaced with the even more successful 500cc V4 two-stroke powered NSR500
- Liquid cooled three cylinder two-stroke, 495cc (62.4 x 54)mm
- 130BHP @ 11,000rpm, 57.9lb-ft @ 10,500rpm
- Reed valve inlet, ATAC exhaust chamber
- CDI ignition
- Three 36mm Mikuni carburetors
- Gear primary with chain final drive
- Dry multi-plate clutch, six speed gearbox
- Welded aluminium duplex cradle frame
- Telescopic RWU Showa forks with mechanical dive control, aluminium swinging arm with Show pro-link adjsustable shock abosorber
- Light-alloy Comstar type wheels
- Michelin 13/60 x 16 (dry), 12/60 x 16 (wet) front tyre
- Michelin 18/67 x 17 (dry), 18/67 x 16 (wet) rear tyre
- Dual floating discs with Nissin four-piston opposed calipers, front
- Single carbon floating disc, rear
- 19 litre fuel tank
- 1375mm wheelbase, 25deg rake
- 116-121kg dry weight according to specification
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