Honda CRF250R (2004-2008) Review: A Legacy of Motocross Dominance

Introduction

The Honda CRF250R arrived in 2004 as a revolutionary force in the 250cc motocross segment. Designed to replace the beloved CR250 two-stroke, this four-stroke machine quickly established itself as a benchmark for precision, reliability, and race-ready performance. From tight supercross tracks to open outdoor circuits, the 2004-2008 CRF250R generation remains a favorite among riders who value a balanced combination of power delivery, agile handling, and Honda’s legendary build quality. After spending time with a well-maintained 2007 model, it’s clear why this bike still commands respect in the used market and continues to be a platform for customization.

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Engine Performance: Controllable Fury

At the heart of the CRF250R lies a liquid-cooled 249cc single-cylinder four-stroke engine that underwent subtle refinements during its production run. Early models (2004-2006) featured a 37mm Keihin carburetor with a 12.5:1 compression ratio, while 2007-2008 bikes upgraded to a 40mm carb and a sharper 12.9:1 compression. The difference is tangible: later models offer a stronger mid-range punch and better throttle response when exiting corners.

What stands out is the engine’s linear power delivery. Unlike peakier competitors, the CRF250R builds power progressively from bottom to top, making it forgiving for less experienced riders while still rewarding experts. The 5-speed transmission shifts with Honda’s typical precision, though some test riders noted a preference aftermarket for closer gear ratios on high-speed tracks.

Metric | Specification
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Displacement | 249cc (15.19 cu in)
Bore x Stroke | 78mm x 52.2mm (3.1" x 2.1")
Compression Ratio | 12.5:1 (2004-2006) / 12.9:1 (2007-2008)
Fuel System | Keihin Carburetor (37mm/40mm)

The engine’s weak point? Valve maintenance. While more durable than earlier Honda four-strokes, the titanium valves still require diligent clearance checks – a small price for the responsive revving nature.

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Chassis and Handling: Surgical Precision

Honda’s aluminum twin-spar frame became the gold standard for 250cc motocross bikes during this era. Weighing just 92.5 kg (204 lbs) in its lightest configuration, the CRF250R feels telepathic when transitioning between ruts and berms. The 27.5° rake (increased to 27.9° in 2008) and 123mm trail strike a perfect balance between high-speed stability and low-speed agility.

Key components include:
- Showa Suspension: 47mm inverted forks with 16-click compression/rebound adjustability (315mm/12.4" travel)
- Pro-Link Rear: Showa shock with high/low-speed compression damping adjustments (315mm/12.4" travel)

On rocky terrain, the suspension feels plush yet communicative, while big jumps are met with controlled bottoming resistance. The 2008 model’s revised linkage improved rear wheel tracking, but even early CRF250Rs outperform many modern bikes in suspension tunability.

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Ergonomics: Built for Battle

At 965mm (38"), the seat height accommodates riders from 5’6" to 6’0" comfortably. Narrow bodywork and a flat seat profile make it easy to shift weight forward under braking or rearward for acceleration. The 2008 special edition black plastics added visual flair, but the classic Honda red remains iconic.

Standout ergonomic features:
- Handlebar Position: Neutral setup suits both aggressive racing and technical trail riding
- Footpegs: Large serrated pegs offer boot grip even in mud
- Fuel Capacity: 7.57L (2.0 gal) provides 30-45 minutes of hard riding

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Competition: How It Stacks Up

The CRF250R faced fierce rivals during its era:

Yamaha YZ250F (2004-2008)

• Strengths: Broader powerband, steel frame durability
• Weaknesses: Heavier feel (98kg/216 lbs), less precise cornering
• CRF Edge: Lighter chassis, superior suspension adjustability

Kawasaki KX250F (2004-2008)

• Strengths: Strong top-end power, aggressive styling
• Weaknesses: Frequent valve adjustments, harsh stock suspension
• CRF Edge: More reliable engine, better low-rpm torque

Suzuki RM-Z250 (2004-2008)

• Strengths: Sharpest turning radius
• Weaknesses: Chronic clutch/transmission issues
• CRF Edge: Honda’s bulletproof transmission durability

While competitors often matched the CRF250R in peak power, none could replicate its balanced package of rideability and longevity.

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Maintenance: Keeping the Legend Alive

The 2004-2008 CRF250R rewards meticulous owners. Key considerations:

Engine Longevity

• Valve Inspections: Check clearances every 20-30 hours
• Piston Replacement: 50-80 hours for aggressive riders
• Oil Changes: Every 5-10 hours (use JASO MA-certified 10W-40)

Suspension Refresh

• Fork Seals: Replace every 50 hours or when leaking
• Shock Rebuild: Annually for serious racers

MOTOPARTS.store Upgrades

• Air Filters: Twin-air replacement filters for better airflow
• Sprockets: Renthal aluminum rear sprockets (-1 tooth for tighter tracks)
• Brake Pads: EBC sintered pads for improved stopping
• Handlebar Kits: Pro Taper SE Carmichael bend for reduced vibration

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Conclusion: Timeless MX Innovation

Fifteen years after its debut, the Honda CRF250R (2004-2008) remains a viable choice for weekend warriors and vintage motocross enthusiasts alike. Its combination of a torquey four-stroke engine, race-proven chassis, and unparalleled aftermarket support ensures these bikes continue to dominate tracks and trails. While newer fuel-injected models offer technological advancements, this carbureted generation delivers a raw, mechanical riding experience that’s becoming increasingly rare. With proper maintenance and strategic upgrades from MOTOPARTS.store, these Hondas are more than capable of mixing it up with modern machinery – proof that great design never truly goes out of style.

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Specifications sheet

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