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Motocross Bikes

2021GAS GAS MC 85

★ 5.0
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The 2021 GAS GAS MC 85 is a lightweight two-stroke motocross bike designed for young and intermediate riders developing their skills. Powered by an 84.9cc liquid-cooled engine with six-speed transmission, it delivers agile handling and responsive performance ideal for training and club-level competition. Built on a steel frame with hydraulic Formula brakes, the MC 85 is renowned for its reliability and approachable power delivery.

Capacity
84.9 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Dry weight
68.0 kg
Seat height
875 mm
Power
Not on record
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Other years 2021 2022

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 34Agility 91Comfort 30Off-road 95Touring 10Road manners 15
Off-road & trail95%
Cornering80%
City riding5%
Daily riding5%
Touring5%
Two-up0%
Track60%
Best for
Built purely for motocross racing and off-road competition, with a lightweight two-stroke design optimized for track performance rather than any road use.
Built for
A sharp, high-revving two-stroke with premium WP suspension components that rewards aggressive, skilled riding with agile, responsive handling on rough terrain.
Not ideal for
This bike is not suitable for adult riders, road use, commuting, 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.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 875mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with tip-toe one foot on the 2021 GAS GAS MC 85, with a cramped knee angle of around 75 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

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Full specifications

Engine
Capacity
84.9 ccm
Engine type
Single, two-stroke
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
MEDJ digital EMS
Power
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet, multi-disc clutch, Formula hydraulics
Dimensions & weight
Wheelbase
1137 mm
Seat height
875 mm
Dry weight
68.0 kg
Fuel capacity
5.20 litres
Ground clearance
377 mm
Chassis & suspension
Frame
25CrMo4 steel central-tube
Front suspension
XACT 43 WP Upside-Down fork, Ø 43 mm
Rear suspension
XACT WP PDS mono shock
Front wheel travel
280 mm
Rear wheel travel
315 mm
Rake (fork angle)
24.0°
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
240 mm
Rear brakes
Single disc
Front tyre
60/100-14
Rear tyre
80/100-12
Other
Color options
Red/white
Comments
Spanish made bike.

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 20212022
Capacity 85 cc 85 cc
Dry weight 68 kg 68 kg
Seat height 875 mm 890 mm
Fuel capacity 5.2 L 5.2 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

5.0
★★★★★
Rider rating
MotorcycleDB

The 2021 GAS GAS MC 85 is a top-notch motorcycle that is perfect for young riders looking to hone their skills on the track or trail. With its powerful 85cc engine and lightweight design, this bike offers plenty of speed and agility for riders to confidently navigate various terrains. The high-quality suspension and braking system also provide excellent control and stability, making it a reliable choice for riders of all skill levels.

Riding the 2021 GAS GAS MC 85 is a thrilling experience, thanks to its responsive handling and smooth power delivery. The comfortable ergonomics and durable construction make it a great option for young riders who are serious about improving their riding abilities. Overall, this motorcycle offers exceptional performance and durability, making it a worthwhile investment for anyone looking for a reliable and capable bike. Whether you're hitting the track or exploring off-road trails, the GAS GAS MC 85 is a solid choice that delivers an exhilarating ride every time.

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Common questions

What is the engine size of the GAS GAS MC 85?

The 2021 GAS GAS MC 85 has a Capacity of 84.9 ccm (5.18 cubic inches).

How many gears does the GAS GAS MC 85 have?

The 2021 GAS GAS MC 85 has a Gearbox of 6-speed.

How much does the GAS GAS MC 85 weigh?

The 2021 GAS GAS MC 85 has a Dry weight of 68.0 kg (149.9 pounds).

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