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Trial · 2017

TXT GP 250

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2017 GAS GAS TXT GP 250 Technical Analysis & Specification Breakdown

Engineered by GAS GAS for the trial motorcycle segment, the 2017 GAS GAS TXT GP 250 relies on a 247.7 cc (15.1 cu in) liquid-cooled single cylinder, two-stroke powerplant. Internal engine geometry specifies a bore and stroke of 72.5 x 60.0 mm (2.9 x 2.4 inches).

On the scales, the TXT GP 250 measures 66 kg (146 lbs) dry. Rider ergonomics and chassis geometry center around a 650 mm (25.6 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,320 mm (52 in) wheelbase engineered for quick, flickable steering geometry. The 2.5-liter (0.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's GAS GAS archive, this model family spans 6 indexed model years from 2017 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Standover Height
650 mm (25.6 in)
Engine
Displacement 247.7 ccm (15.11 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Reed valve.
Bore x Stroke 72.5 x 60.0 mm (2.9 x 2.4 inches)
Fuel System Carburettor. Keihin PWK 28
Lubrication 2-stroke-oil/fuel mixed 1:50
Cooling Liquid
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Clutch GG 1/3 hydraulic-diaphragm-system
Chassis
Frame Type Chrom-Molybdenum tubular frame
Front Suspension TECH with aluminium bar Ø 39. Ajustable Rebound / Compression / Spring Preload / End stroke.
Front Travel 177 mm (7.0 inches)
Rear Suspension Reiger hydraulic mono shock absorber (3 ways). Rebound / Compression / Spring Preload Ajustable
Rear Travel 174 mm (6.9 inches)
Wheelbase 1320 mm (52.0 inches)
Wheels & Brakes
Front Tyre 2.75-21
Rear Tyre 4.00-18
Front Brakes Single disc. Floating discs. Four-piston calipers.
Front Brake Ø 185 mm (7.3 inches)
Rear Brakes Single disc. Two-piston calipers.
Rear Brake Ø 150 mm (5.9 inches)
Wheels Aluminium rims, wire spoked.
Dimensions & Weight
Dry Weight 66.0 kg (145.5 pounds)
Seat Height 650 mm (25.6 inches) If adjustable, lowest setting.
Overall Height 1130 mm (44.5 inches)
Overall Length 2010 mm (79.1 inches)
Overall Width 825 mm (32.5 inches)
Fuel Capacity 2.50 litres (0.66 US gallons)
Other
Starter Kick
Color Options Red/white/black
Notes

Various carbon fiber parts. Limited edition. Spanish made bike.

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Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

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Seat Height
65 cm / 25.6 in
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