The 2011 GAS GAS TXT Pro 280 is a competition trials bike for skilled riders. Its liquid-cooled 272cc two-stroke single makes 18.8 hp through a six-speed gearbox and chain. With a low 665 mm seat, 67.1 kg dry weight and 2.5-litre tank, it is made for slow, precise riding over obstacles.
Editorial estimate from the spec sheet - not lab tested
Off-road & trail97%
Cornering60%
City riding5%
Daily riding5%
Touring3%
Two-up0%
Track10%
Best for
Built purely for competitive and recreational trials riding, tackling obstacles, rocks, and technical terrain at walking pace rather than for any kind of conventional riding.
Built for
A featherlight, razor-responsive two-stroke trials tool defined by explosive low-down torque delivery, pinpoint chassis feedback, and total disregard for comfort or a conventional seat.
Not ideal for
Not suitable for anyone wanting a road-going, touring, or daily commuter bike, as it lacks a real seat, lights, fuel range, and any high-speed capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Full specifications
Engine
Capacity
272.0 ccm
Power
18.8 HP (13.8 kW)
Engine type
Single, two-stroke
Power/weight ratio
0.2802 HP/kg (dry)
Bore x stroke
76.0 x 60.0 mm
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
CDI digital magnetic flywheel.
Lubrication system
2,5% mixture
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Multidisc, hydraulically-operated
Dimensions & weight
Wheelbase
1330 mm
Overall length
2045 mm
Overall height
1130 mm
Seat height
665 mm
Dry weight
67.1 kg
Fuel capacity
2.50 litres
Chassis & suspension
Frame
Eliptic profile in CR-MO.
Front suspension
Marzocchi* adjustable telehidraulic fork. with 40 mm aluminium bars.
Rear suspension
Variable progressivity system
Front wheel travel
177 mm
Rear wheel travel
164 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
185 mm
Rear brakes
Single disc
Rear brakes diameter
150 mm
Front tyre
2.75-21
Rear tyre
4.00-18
Other
Color options
Red/black
Specs last verified against published sources: .
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
2004
2006
2009
2011
2014
Capacity
272 cc
272 cc
272 cc
272 cc
272 cc
Dry weight
69 kg
67 kg
67 kg
67 kg
68 kg
Seat height
665 mm
665 mm
665 mm
665 mm
650 mm
Fuel capacity
3 L
3 L
2.5 L
2.5 L
2.5 L
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
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