Honda CR 85 R - 2005 Specifications and Reviews

The 2005 Honda CR 85 R is a lightweight two-stroke motocross machine designed for young and intermediate riders transitioning to competitive off-road racing. Known for its responsive 84.7cc engine, adjustable suspension, and nimble handling characteristics, it excels in both training and youth-level competition. The bike's compact chassis and manageable power delivery make it an ideal stepping stone between smaller 50cc models and larger 125cc machines.

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General information

CategoryCross / motocross
Year2005
ModelHonda CR 85 R
 
 

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
IgnitionCD with electronic advance
Fuel systemCarburettor. 38.0mm Mikuni TMX with throttle position sensor (TPS)
Bore x stroke47.5 x 47.8 mm (1.9 x 1.9 inches)
Compression8.4:1
Engine typeSingle cylinder, two-stroke
Capacity:84.70 ccm (5.17 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions90/90-14
Front tyre dimensions70/70-17
Rear suspension travel274 mm (10.8 inches)
Rear suspensionPro-Link fully adjustable Showa single-shock;
Front suspension travel274 mm (10.8 inches)
Front suspension37mm fully adjustable leading-axle inverted Showa cartridge fork
Trail77 mm (3.0 inches)
Rake (fork angle)26.5°
 
 

Physical measures and capacities

Fuel capacity5.10 litres (1.35 gallons)
Wheelbase1,247 mm (49.1 inches)
Ground clearance310 mm (12.2 inches)
Seat height823 mm (32.4 inches) If adjustable, lowest setting.
Dry weight65.3 kg (144.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsRed

Performance Profile & Rider Fit

Best For

Track75%
City5%
Cornering85%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a small-wheel 85cc motocross machine built for younger or smaller-statured riders who are progressing from mini bikes toward full-size motocross machines.
PurposeIt exists purely for competitive motocross racing on dirt tracks, not for street use, commuting, or leisure riding.
Rider FitIts low dry weight and compact 823mm seat height make it manageable for lighter or younger riders, though the demands of motocross still require good fitness and bike control.
CharacterIt is a high-strung, race-focused two-stroke that rewards aggressive riding, high revs, and precise technique with sharp, flickable handling.
Not Ideal ForIt is not suitable for taller or heavier adult riders, road use, touring, commuting, or carrying a passenger.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2005 Honda CR 85 R Rider Ergonomics Assessment

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Feet:

At 823mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2005 Honda CR 85 R, with a cramped knee angle of around 70 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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