TXR 312 M
1989 Aprilia TXR 312 M Technical Analysis & Specification Breakdown
Built around Aprilia's trial motorcycle platform, the 1989 Aprilia TXR 312 M utilizes a 277 cc (16.9 cu in) liquid-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 10 HP (7.3 kW) at 6,400 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 36.1 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the TXR 312 M measures 90 kg (198 lbs) wet (curb), translating to a power-to-weight ratio of 0.11 HP/kg (9 kg per horsepower). The 4.5-liter (1.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 85 km/h (53 mph).
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