The 1986 Aprilia TX 311 M is a lightweight single-cylinder trail bike designed for novice and amateur off-road riders. Powered by a modest 277cc liquid-cooled engine producing 17 horsepower, it excels as an affordable entry-level enduro machine. Its nimble handling and minimal weight make it ideal for learning trail riding techniques on varied terrain.
Editorial estimate from the spec sheet - not lab tested
Off-road & trail97%
Cornering40%
City riding15%
Daily riding10%
Touring8%
Two-up5%
Track10%
Best for
This is a dedicated competition trial machine built for tackling technical obstacles at walking pace, not for covering distance or riding on paved roads.
Built for
A featherweight, high-revving two-stroke trial bike that rewards precise, deliberate inputs and thrives in slow, technical terrain.
Not ideal for
Not for riders wanting a comfortable, fast, or practical bike for road use, touring, or carrying a passenger.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Full specifications
Engine
Capacity
277.0 ccm
Power
17.0 HP (12.5 kW) @ 6400 RPM
Engine type
Single, two-stroke
Power/weight ratio
0.2000 HP/kg (wet)
Bore x stroke
76.0 x 61.0 mm
Compression
8.5:1
Cooling system
Liquid
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Performance
Top speed
125.0 km/h (77.7 mph)
Dimensions & weight
Wet weight
85.0 kg
Fuel capacity
6.50 litres
Brakes & wheels
Front brakes
Single disc
Rear brakes
Expanding brake
Front tyre
2.75-21
Rear tyre
4.00-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted
Specification
1986
1987
1988
Capacity
277 cc
277 cc
277 cc
Fuel capacity
6.5 L
6.5 L
6.5 L
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
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