The 2016 GAS GAS TXT Pro 125 is a lightweight trial motorcycle designed for intermediate to advanced riders seeking technical off-road performance. Its 125cc two-stroke engine delivers responsive power ideal for navigating challenging terrain, while the quality suspension components and hydraulic clutch system ensure precise control and stability. Best known for its proven trial capabilities and exceptional maneuverability.
Editorial estimate from the spec sheet - not lab tested
Off-road & trail100%
Cornering60%
City riding5%
Daily riding5%
Touring2%
Two-up0%
Track10%
Best for
Built purely for competitive and recreational observed trials riding, tackling rocks, logs, steep slopes and technical obstacles at walking pace.
Built for
A featherlight, razor-responsive two-stroke tool designed for tight throttle control and instant direction changes rather than outright speed or comfort.
Not ideal for
This is not the bike for anyone wanting to ride on the road, cover distance, carry a passenger, or sit down for long periods.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Full specifications
Engine
Capacity
124.8 ccm
Power
15.0 HP (11.0 kW)
Engine type
Single, two-stroke
Power/weight ratio
0.2273 HP/kg (dry)
Bore x stroke
54.0 x 54.5 mm
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
CDI
Lubrication system
2-stroke-oil/fuel mixed 1:50
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
GG 1/3 hydraulic-diaphragm-system
Dimensions & weight
Wheelbase
1320 mm
Overall length
2010 mm
Overall width
825 mm
Overall height
1130 mm
Seat height
630 mm
Dry weight
66.0 kg
Fuel capacity
2.50 litres
Chassis & suspension
Frame
Chrom-Molybdenum tubular frame
Front suspension
Marzocchi 40 mm Aluminium Right-Sight-Up
Rear suspension
Reiger hydraulic mono shock absorber (2 ways)
Front wheel travel
177 mm
Rear wheel travel
164 mm
Brakes & wheels
Front brakes
Single disc. Floating wave disk, 4-piston caliper
Front brakes diameter
185 mm
Rear brakes
Single disc. Wave disc
Rear brakes diameter
150 mm
Front tyre
2.75-21
Rear tyre
4.00-18
Other
Color options
Red/white/black
Comments
Spanish made bike. Model also called TXT Pro 125 Racing.
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
2009
2011
2014
2016
Capacity
125 cc
125 cc
125 cc
125 cc
125 cc
Dry weight
69 kg
69 kg
66 kg
67 kg
66 kg
Seat height
665 mm
665 mm
650 mm
650 mm
630 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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