Honda CR85RB (Expert): history, specs, pictures

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Honda CR85RB
Also called CR85 Expert
Production 2004 - 2007
Class Motocross
Liquid-cooled single-cylinder two-stroke, reed-valve
Bore / Stroke 48.3mm x 48.3mm
Compression ratio 8.4:1
Fuel System 28mm flat slide carburetor
Transmission Gear box: 6 Speed, manual, close ratio

Final Drive: #420 chain; 15T/55T

Clutch: Wet multi-disc, manual
Front Sprocket 15T
Rear Sprocket 55T
Suspension Front: 37mm fully adjustable leading-axle inverted Showa cartridge fork; 10.8 inches travel
Rear: Pro-Link fully adjustable Showa single shock; 11.5 inches travel
Brakes Front: Single disc
Rear: Single disc
Front Tire 70/100-19
Rear Tire 90/100-16
Wheelbase 50.71 inches (1288 mm)
Seat Height 34.02 inches (864 mm)
Weight 66.0 kg (wet)
Recommended Oil Honda GN4 10W-40
Manuals Service Manual

The Honda CR85RB was a Liquid-cooled single-cylinder two-stroke, reed-valve Enduro motorcycle produced by Honda in 2007.


A 48.3mm bore x 48.3mm stroke result in a displacement of just 84.7 cubic centimeters.


The bike has a 6 Speed, manual, close ratio transmission. Power was moderated via the Wet multi-disc, manual.


It came with a 70/100-19 front tire and a 90/100-16 rear tire. Stopping was achieved via Single disc in the front and a Single disc in the rear. The front suspension was a 37mm fully adjustable leading-axle inverted Showa cartridge fork; 10.8 inches travel while the rear was equipped with a Pro-Link fully adjustable Showa single shock; 11.5 inches travel. The wheelbase was 50.71 inches (1288 mm) long.

2004 Honda CR 85R Expert[edit]

The CR85R Expert comes with the same engineering features and specifications as the CR85R motorcycle, but also has a few differences: bigger wheels, a higher seat and longer swingarm.

2007 Honda CR85RB[edit]

2007 Honda CR85RB

The 2006 CR85RB is the slightly bigger version of the CR85R. They share the same engine and transmission, but the wheels, sprockets and several other parts are larger. That is, in case your kids are on the taller side, but are not ready yet to take the next step in engine displacement, Honda's CR85RB is the perfect solution.

Retaining the racing looks, the CR85RB is also equipped with a heavy-duty clutch and a six-speed transmission, with a very strong educational purpose which will have the young riders acquainted to the basics of dirt racing better than anything.

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Mopeds and light motorcycles: Ape models | Cub series | CT series | ST series/Dax | S series |Wave series | Z series
Honda CR Series
Classic Racing: CR93 · CR110 · CR750
Classic Motocross: CR125M · CR250M
Contemporary Motocross: CR60 · CR80R · CR85R · CR85RB (Expert) · CR85X · CR125R · CR250R · CR450 · CR480R · CR500R