2009 Honda CRF250X

Introduction

The high-spirited CRF250X combines light weight, strong, versatile power, confidently responsive handling and unrivalled fun in one of the finest dirt bikes to be found in the world of off-road riding. Acclaimed by the motorcycle media, enthusiasts and serious off-road riders everywhere, it features the easy dependability of push-button electric starting and the strong, versatile performance of an enduro champion that anybody can enjoy.

The dynamic CRF250X’s winning combination of easy-handling excitement and solid dependability will deliver more fun than you’ve ever had in the dirt.

Key Features

• All plastic body components designed for slim, aggressive styling and light weight
• Ample 7.6-litre fuel tank capacity
• Resettable, easy-to-read three-digit competition odometer
• Rider ergonomics optimised by positioning rider’s legs at frame’s narrowest width for improved comfort and handling feel
• Rear brake pedal and shift lever made of lightweight aluminium and designed to complement the riding position
• Wide, cleated stainless steel footpegs are self-cleaning, resist corrosion, provide excellent grip and fold for extra ground clearance
• Aluminium Renthal handlebar (971 bend) is rubber-mounted 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
• Chain guide material offers improved wear resistance, with five times longer service life than conventional materials
• Removable rear sub-frame allows easy maintenance
• Washable, easy-access two-stage urethane foam air filter for optimal engine protection and easy maintenance
• Stainless steel clutch cable for long life

Engine

• 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
• Push-button electric starter ensures easy start-ups in all conditions
• Innovative 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
• 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 rollers on the flat slide 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 an aluminium silencer equipped with a spark arrester which complies with all local fire and noise regulations
• 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, smooth-shifting wide-ratio 5-speed transmission

Chassis

• 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
• Suspension tuned for competitive off-road riding needs
• 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, as well as stiffer springs for improved mid-stroke action. 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 optimised 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 and enhanced protection against flat tyres
• 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 240mm Works-style brake rotors minimise unsprung weight for improved turning and handling
• HRC Works-type rear brake system integrates the rear master cylinder and fluid reservoir into one compact, lightweight unit
• Dunlop 742FA front tyre improves turning feel and traction

Colours

• Extreme Red (with white number plate and sidecovers)

Availability & Model Changes For 2009

• Availability: Now
• Changes for 2009: Cosmetic changes

Technical Specification

Engine

• Type - Liquid-cooled 4-stroke 4-valve SOHC single
• Displacement - 249cm3
• Bore x Stroke - 78 x 52.2mm
• Compression Ratio - 12.9 : 1
• Max. Power Output - 21.9kW/9,000min-1 (95/1/EC)
• Max. Torque - 24.2kW/8,000min-1 (95/1/EC)

Fuel System

• Carburetion - 37mm Keihin FCR flat slide carburettor with throttle position sensor (TPS)
• Fuel Tank Capacity - 7.2 litres (including 1.5-litre reserve)

Electrical System

• Ignition System - Computer-controlled digital capacitor discharge with electronic advance and lighting coil
• Starter - Electric / Primary kick

Drivetrain

• Transmission - 5-speed
• Primary Reduction - 3.611 (65/18)
• Gear Ratios - 1; 2.384 (31/13), 2; 1.750 (28/16), 3; 1.333 (28/21), 4; 1.041 (25/24), 5; 0.814 (22/27)
• Final Reduction - 3.786 (53/14)
• Final Drive - #520 T-ring roller chain

Frame

• Type - Semi-double cradle; aluminium twin-spar

Chassis

• Dimensions (LxWxH) - 2,174 x ?827 x 1,261mm
• Wheelbase - 1,481mm
• Caster Angle - 27° 54'
• Trail - 118mm
• Seat Height - 957.5mm
• Ground Clearance - 340.3mm
• Kerb Weight - 114.8kg

Suspension

• Type - Front 47mm inverted Showa leading-axle twin-chamber cartridge-type telescopic fork with 16-step adjustable compression and rebound damping; 315mm axle travel
• Rear - Pro-Link with single Showa damper, adjustable low-speed (13-step) & high-speed (3.5-turn) compression and 17-step rebound damping; 315mm axle travel

Wheels

• Type - Front; Aluminium rim/wire spoke
• Rear; Aluminium rim/wire spoke
• Rim Size - Front; 21 x 1.60
• Rear; 18 x 2.15
• Tyre Size - Front; 80/100–21 M/C 54R
• Rear; 100/100–18 M/C 65R

Brakes

• Type - Front; 240 x 3mm hydraulic disc with dual-piston calliper and sintered metal pads
• Rear; 240 x 4mm hydraulic disc with single-piston calliper and sintered metal pads

All specifications are provisional and subject to change without notice