Motocross Bikes

1986Honda CR 125 R

38 fields on record

The 1986 Honda CR 125 R is a mid-1980s two-stroke motocross racer from Honda. Its liquid-cooled 124cc single makes 31 hp and 20 Nm through a six-speed gearbox. A 930 mm seat and 87.5 kg dry weight made it a light, competitive race bike.

Capacity: 124.0 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 87.5 kg
Seat height: 930 mm
Power: 31.0 HP (22.8 kW)

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What’s new for the 1986 Honda CR 125 R

vs the 1985

Spec	1985	1986
Dry weight	86.0 kg (189.6 pounds)	87.5 kg (192.9 pounds)
Fuel capacity	6.00 litres (1.59 US gallons)	6.40 litres (1.69 US gallons)
Wheelbase	1435 mm (56.5 inches)	1458 mm (57.4 inches)

Other years 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail97%

Cornering90%

City riding5%

Daily riding5%

Touring3%

Two-up0%

Track85%

Best for: Built purely for motocross racing on prepared tracks, not for street or general recreational use.
Built for: A raw, lightweight two-stroke race weapon that rewards aggressive, skilled riding with explosive acceleration and razor-sharp handling.
Not ideal for: Not suitable for beginners, commuters, or anyone seeking comfort, passenger capability, or road-going practicality.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 930mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 1986 Honda CR 125 R, with a cramped knee angle of around 80 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.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 124.0 ccm
Power: 31.0 HP (22.8 kW)
Torque: 20.0 Nm (2.0 kgf-m) @ 10500 RPM
Engine type: Single, two-stroke
Power/weight ratio: 0.3543 HP/kg (dry)
Bore x stroke: 54.0 x 54.5 mm
Compression: 8.0:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: CDI

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet plate

Dimensions & weight

Wheelbase: 1458 mm
Overall length: 2115 mm
Overall width: 845 mm
Overall height: 1200 mm
Seat height: 930 mm
Dry weight: 87.5 kg
Fuel capacity: 6.40 litres
Ground clearance: 345 mm

Chassis & suspension

Front suspension: 46mm inverted Kayaba cartridge fork with 18-position rebound- and 20-position compression-damping adjustability.
Rear suspension: Monoshock
Front wheel travel: 310 mm
Rear wheel travel: 318 mm
Rake (fork angle): 29.5°
Trail: 101 mm

Brakes & wheels

Front brakes: Expanding brake (drum brake)
Front brakes diameter: 240 mm
Rear brakes: Expanding brake (drum brake)
Rear brakes diameter: 240 mm
Front tyre: 90/80-21
Rear tyre: 130/80-18

Other

Color options: Red
Modifications compared to previous model: Drivechain has moved to the left side of the bike.

Specs last verified against published sources: October 2026.

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	1983	1986	1989	1995	2001	2007
Capacity	124 cc	124 cc	125 cc	125 cc	125 cc	125 cc
Dry weight	86 kg	88 kg	86 kg	86 kg	86 kg	89 kg
Seat height	930 mm	930 mm	930 mm	930 mm	930 mm	947 mm
Fuel capacity	6 L	6.4 L	6 L	6 L	6 L	7.6 L