- Suzuki RGV250
The RGV250 Gamma is a small two-stroke street
motorcycle , a race-replica based onSuzuki 's 250cc GP bikes from 1987 to 1998. This motorcycle replaced the popularRG250 Gamma .It produces 50+ hp in a narrow power band between 8,000 to 11,000 rpm. Weighing in at convert|128|kg|lb|0|abbr=on (1989) to around convert|140|kg|lb|0|abbr=on (later models) dry weight, this motorcycle is an extremely quick machine for its engine size. The top speed of a standard RGV is around convert|130|mi/h|km/h|0|abbr=on with an average sized man riding it. It has a 0-convert|60|mi/h|km/h|0|abbr=on time of around 4 seconds, again, when ridden by a man of average weight. This motorcycle's engine performance is not relatively inspiring at engine speeds under 6,000 rpm, due to its two stroke, narrow power band tuning focus. Due to its light weight and engine characteristics, it is particularly suited to the track, compared to other motorcycles of similar engine capacity.All RGV250 models, with the exception of the Japanese domestic market's version (restricted to 40hp), make 50+ hp. The model designations are:
VJ21:1988-1990: quoted power; 1988=58hp, 1989=59hp (90° V-Twin, i.e. the space between the cylinders)
VJ22:1991-1996: quoted power; 1991=62hp (revised engine with more power, still 90° V-Twin)
VJ23:1997-1998: quoted power; 1997=67hp (from the very special 'SP' model (sports production) with the new 70° V-Twin)
These motorcycles are not particularly suited to carrying pillion passengers on long rides, due to its race orientated design, detracting from comfort. Hence, touring is also not a strong point of this model. In straight line acceleration, the RGV250 is faster than most other 250cc two stroke and four stroke motorcycles, including the RG250, TZR250, NSR250, Kr1, Kr1-S, FZR250, CBR250RR, ZX250R, Hyosung 250GT and CB250.
The only 250cc production motorcycle which exceeds its straight line acceleration figures is the
Aprilia RS250 , which uses a modified RGV250 VJ22(90° 2-Stroke V-Twin).Aprilia bought engines from Suzuki (which were fitted with Aprilia branded castings on the timing and clutch covers), then fit their own expansion chambers, barrels and ECU. There were also external differences in the cylinder head castings, but no internal differences have been noted.Production of the Aprilia RS250 is thought to have ceased in 2003, with end of engine production by Suzuki.
Wikimedia Foundation. 2010.
