GAS GAS Gas Mc 85 17 14 - 2026 Specifications and Reviews

The GAS GAS MC 85 17-14 is a lightweight two-stroke motocross bike designed for young intermediate riders transitioning to larger machines. Known for its responsive handling and strong mid-range torque delivery, it excels in competitive youth racing with its liquid-cooled engine and advanced digital ignition system. The bike's aggressive geometry and quality suspension make it ideal for developing technique on technical terrain.

2026
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General information

Color OptionsRed/white
CategoryCross / motocross
Year2025
ModelGAS GAS MC 85 17-14
 
 

Engine and Transmission Specifications

StartingKick
ClutchWet, multi-disc clutch, Formula hydraulics
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
IgnitionMEDJ digital EMS
InductionCarburettor. Keihin PWK 28
Bore x Stroke47.0 x 49.0 mm (1.9 x 1.9 inches)
Max Torque85.0 Nm (8.7 kgf-m or 62.7 ft.lbs) @ 2025 RPM
Engine TypeSingle cylinder, two-stroke
Capacity:84.9 ccm (5.18 cubic inches)
 
 

Physical measures and capacities

Fuel Capacity5.40 litres (1.43 US gallons)
Wheelbase1282 mm (50.5 inches)
Ground Clearance308 mm (12.1 inches)
Seat Height845 mm (33.3 inches) If adjustable, lowest setting.
Dry Weight68.0 kg (149.9 pounds)

GAS GAS Gas Mc 85 17 14 dimensions and frame

Wheels1.40 x 17´; 1.60 x 14´
Rear BrakesSingle disc
Brake Disc Diameter220 mm (8.7 inches)
Front BrakesSingle disc
Rear Tyre90/100-14
Front Tyre70/100-17
Rear Wheel Travel289 mm (11.4 inches)
Rear SuspensionXACT WP PDS mono shock
Front Wheel Travel278 mm (10.9 inches)
Front SuspensionXACT 43 WP Upside-Down fork, 43 mm
FrameCentral-tube with double-cradle.

Other specs

MaintenanceFind parts, fluids. filters, maintenance tools and service manuals at Amazon.com.
Insurance costsCompare US insurance quotes from the nation's top providers.
Update specsReport missing specs or required updates.
Rake (fork angle)26.5°
Exhaust systemAluminium
Driveline428, Non-sealed chain. Primary drive: 20:64. Final: 13:46.

Rider Fit Visualizer

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 845mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2026 GAS GAS Gas Mc 85 17 14, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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