2010 Honda CRF250X

Introduction

The incomparably fun and high-spirited CRF250X combines light weight, strong, versatile power and
confidently responsive handling in one of the finest dirt bikes to be found in the world of off-road riding. Hailed by magazines and serious off-road riders everywhere, the remarkable CRF250X also features the easy dependability of push-button electric starting, endurostyle lights to extend your fun after the sun goes down, and the strong, versatile performance of a motocross champion that anybody can enjoy. One ride confirms: the CRF250X pumps out more high-flying fun than you’ve ever had in the dirt.

Colours

• Extreme Red (with White number plate and sidecovers)

Features and Benefits

New Features

• New Works-style front and rear brake rotors reduce unsprung weight.
• New Dunlop 742FA front tyre for improved turning feel and traction.
• New narrow-design fuel tank and seat for improved rider ergonomics.

Unique Features

• Push-button electric start system for easy start-ups in all conditions.
• Ample 7.6-litre fuel tank capacity.
• Resettable, easy-to-read three-digit competition odometer.
• Spark arrester-equipped silencer complies with all local fire and noise regulations.
• Exhaust emissions comply with all local regulations for off-road motorcycles.
• Powerful 35-watt halogen headlight features innovative lens design for wide range of illumination.
• Eye-catching LED taillight integrated into rear fender.
• Convenient sidestand.
• Easy-access urethane foam air filter.
• Smooth-shifting wide-ratio 5-speed transmission.
• Suspension tuned for competitive off-road riding needs.
• 18" rear wheel provides enhanced protection against flat tyres.

Engine/Drivetrain

• Powerful liquid-cooled, electric-start 249cm³ 4-stroke 4-valve Unicam engine is designed to produce strong power across a wide rev range for easy-to-control operation.
• Unique Honda Unicam valve train provides both the light weight of a compact single-cam design and an
  optimum combustion chamber shape for maximum power at all engine speeds.
• Unicam valve train features a single carburised camshaft directly actuating two 31mm titanium intake
  valves. The camshaft’s centre exhaust lobe actuates two 26mm steel exhaust valves via a forked, low-friction, roller rocker-arm.
• Electric starter drives the clutch side of the crankshaft to provide superior lubrication of starter gears, while making possible a narrow engine with a short, strong crankshaft.
• Compact, lightweight engine assembly weighs only 26.4kg.
• Magnesium ACG cover, clutch cover and cylinder head cover reduce engine weight.
• Forged 12.9 : 1 compression slipper piston is lighter than conventional designs, for quick-revving response while maintaining excellent cylinder sealing and high-rpm power.
• 37mm Keihin FCR-type carburettor features four flat slide rollers for light throttle effort, smooth operation, crisp throttle response and excellent rideability.
• Carburettor features throttle position sensor (TPS) that helps maintain linear throttle response throughout
  the rpm range.
• Twin-sump lubrication system separates oil supply to crankshaft, piston and valve train from supply to clutch and transmission. This ensures a steady supply of cool oil to the clutch, eliminates clutch and transmission material contamination of the engine oil, reduces the amount of circulating oil and permits the use of a smaller oil pump.
• Exhaust system uses a lightweight stainless steel exhaust header and muffler equipped with spark
  arrester.
• Dual radiators feature a refined core area for improved heat dissipation compared to conventional dual-radiator designs, and a compact coolant recovery tank.
• Gear-driven balancer reduces vibration and drives the water pump.
• Eight-plate clutch provides surface area necessary to handle engine’s strong torque, while carefully matched clutch springs provide a light feel at the lever.
• T-ring-sealed chain is approximately 1.6mm narrower and stronger than conventional chains.
• Durable 5-speed wide-ratio transmission.

Chassis/Suspension

• Fourth-generation twin-spar aluminium frame derived from Honda’s CR series of championship motocrossers.
• Semi-double-cradle frame design features a single, large-diameter tapered down-tube for optimised frame rigidity, with two rugged box-section rails attached to its base to support the engine. A forged aluminium steering head provides a compact and extremely durable mount for the frame spars and engine down-tube.
• Narrow frame spars and tall swingarm pivot plates combine to create a narrow overall frame cross-section for superb rider comfort and manoeuvrability.
• Lightweight, 47mm Showa inverted twin-chamber cartridge-type fork with aluminium dampers is derived from the CRF250R and features settings unique to the CRF250X. The fork offers 280mm of travel, 16-step rebound and 16-step compression damping adjustability. The inner surfaces of the front fork outer tubes receive the same honing treatment as Works bikes for low-friction operation.
• Pro-Link rear suspension system features single, fully adjustable Showa rear damper with newly revised
  damper settings and 312mm of wheel travel, separate low-speed (13-step) and high-speed (3.5 turns)
  compression damping adjusters, and 17-step adjustable rebound damping.
• Large 50mm rear damper piston diameter provides consistent performance under demanding riding
  conditions.
• Swingarm features a dual-axis, double-taper design with a large cast aluminium cross-member offering high strength and light weight.
• Front wheel features large-diameter front axle and wide wheel-bearing span for excellent rigidity.
• 18" rear wheel features same lightweight rear hub and lightweight HRC Works-type aluminium spoke nipples as used on CRF250R for reduced unsprung weight.
• Large, 25mm-diameter rear axle and large-diameter bearings provide optimum rigidity and strength to
  withstand torturous track conditions.
• Compact dual-piston front brake calliper, anodised aluminium brake pistons and lightweight front brake rotor minimise unsprung weight for improved turning and handling.
• Large, 240mm Works-type front and rear brake rotors.
• HRC Works-type rear brake system integrates the rear master cylinder and fluid reservoir, eliminating
  the need for a remote master cylinder reservoir and hose assembly.

Additional Features

• All plastic body components (including radiator shroud, side covers, rear fender, seat base, fuel tank,
  front fender, and front number plate) are designed for slim, aggressive styling and light weight.
• Rider ergonomics optimised by adapting handlebar, seat and footpeg height to place rider’s legs at frame’s narrowest frame width for improved comfort and handling feel.
• Rear brake pedal and shift lever made of lightweight aluminium and designed to complement riding position. Brake pedal features optimised ratio to match integrated rear brake master cylinder design.
• Wide, cleated stainless steel footpegs are selfcleaning, resist corrosion, provide excellent grip and fold
  for extra ground clearance.
• Aluminium Renthal handlebar (971 bend) is rubbermounted to reduce rider fatigue and improve comfort.
• Handlebar holders provide two different mounting positions to match rider preference.
• Works-type handlebar grips add to rider comfort.
• Adjustable front brake lever.
• Quick-adjust clutch.
• Chain guide material offers improved wear resistance, with five times longer service life than conventional materials.
• Front disc brake cover helps protect rotor and calliper from damage.
• Removable rear sub-frame allows easy maintenance.
• Washable, two-stage foam air filter for optimal engine protection and easy maintenance.
• Comfortable, durable controls and high-quality fasteners.
• Stainless steel clutch cable for long life.
• Honda Racing-inspired colours and graphics.