Honda XR 400 R - 2003 Specifications and Reviews

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General information

CategoryCross / motocross
ModelHonda XR 400 R
Year2003

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox5-speed
Cooling systemAir
Fuel controlSOHC
Valves per cylinder4
Bore x stroke85.0 x 70.0 mm (3.3 x 2.8 inches)
Compression9.3:1
Stroke4
Engine typeSingle cylinder
Capacity:397.00 ccm (24.22 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,425 mm (56.1 inches)
Ground clearance310 mm (12.2 inches)
Seat height930 mm (36.6 inches) If adjustable, lowest setting.
Dry weight116.6 kg (257.1 pounds)

Honda XR 400 R dimensions and frame

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions110/100-18
Front tyre dimensions80/100-21
Rear suspension travel300 mm (11.8 inches)
Front suspension travel279 mm (11.0 inches)

Speed and acceleration

Reserve fuel capacity1.80 litres (0.48 gallons)
Fuel capacity11.40 litres (3.01 gallons)

Other specs

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

Performance Profile & Rider Fit

Best For

Track20%
City25%
Cornering55%
Daily Riding30%
Touring25%
Passenger10%

Rider Profile

Best ForThis bike suits riders with at least some off-road or dirt bike experience due to its tall seat height and light, responsive handling that rewards active riding.
PurposeBuilt as a dedicated enduro and trail bike, it excels at technical off-road riding, motocross-style tracks, and rugged terrain rather than pavement cruising.
Rider FitThe tall 930mm seat height and long-travel suspension favor taller or more physically fit riders comfortable standing on pegs and shifting body weight actively.
CharacterLight, nimble, and torquey, this air-cooled single feels raw and mechanical, delivering direct feedback and confidence-inspiring agility over rough ground.
Not Ideal ForThis is not the right choice for riders seeking highway comfort, high top speed, passenger touring, or a low, easy-reach seat height.

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

Rider Fit Visualizer

2003 Honda XR 400 R Rider Ergonomics Assessment

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

Feet:

At 930mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2003 Honda XR 400 R, with a cramped knee angle of around 80 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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