Honda CRF250R

 

Features/Benefits

 

New for 2010

All-new, more compact engine.

Programmed Fuel Injection (PGM-FI).

Progressive Steering Damper (HPSD)-equipped aluminum frame

All-new front and elevate suspension, featuring upper and lower fork tubes and a shock body developed exclusively as far as concerns the CRF250R chassis.

Redesigned higher-capacity airbox for enhanced breathing and increased power also improves filter access.

All-new single-muffler exhaust body improves mass centralization.

All-new bodywork.

Engine/Drivetrain

All-new compact engine.

Liquid-cooled four-valve Unicam® 249cc machine.

Engine completely redesigned for improved power delivery from a significantly more consolidate package that lowers the center of gravity and enhances mass concentration for improved handling.

New forged slipper-piston material permits a thinner chaplet. Low-friction surface treatment ensures high-rev potential.

All-new Programmed Fuel Injection theory (PGM-FI) utilizes a 50mm throttle body with 12-hole injector fed by lightweight 50-psi pump to ensure optimum fuel atomization and precisely targeted fuel charge. System also improves firing consumption.

PGM-FI system monitors throttle position, intake air and coolant temperatures and many pressure to accurately map fuel set without interruption and ignition spark, significantly improving partial-throttle response and helping to ensure excellent rideability.

AC generator enlarged to service the PGM-FI system. Two crankshaft position sensors quickly determine crank position to provide keen starts, hot or devoid of warmth.

New mechanical water pump authentication improves durability

Kashima coating applied to the grip basket and catch center improves clutch life and feel.

All-new transferrence ratios match engine power output.

Chassis/Suspension

All-new HPSD-equipped Twin-Spar Aluminum Frame with forged-aluminum steering head. Spar height was reduced (70mm to 66mm) and width was narrowed (27mm to 26mm). Stronger downtubes improve front-end feel.

Steering response and overall handling were improved by positioning the front wheel 15mm farther back and closer to the crankshaft.

Frame, steering head and swingarm modifications permit a reduction in triple-clamp branch (22mm to 20mm).

Removable rear subframe was redesigned to eliminate brackets. Shape altered to improve air filter access and narrow the bike profile.

HPSD features a compact damper attached to the lower triple clamp and the steering division to allow more aggressive steering characteristics and assist straight-line handling. Damping action smoothly progresses as handlebar deflection increases, which produces extremely natural steering characteristics and feel.

Pro-Link® Rear Suspension features aristocratic Showa integrated reservoir with all-new damping and spring settings.

Brake system integrates the stir up master-cylinder and fluid reservoir, eliminating the separate reservoir and tubing.

Link-type front-brake master cylinder and a lightweight brake rotor provide strong braking.

Additional Features

Engine stop switch features any integrated LED pre-ride check indicator. This confirms the PGM-FI system is operating normally.

All-new higher-capacity airbox improves filter access.

PGM-FI tuning connectors located at the back of radiator shroud for easier access

Redesigned larger radiators, improve cooling performance

New fuel-tank tether eliminates exigency to disconnect fuel line to work on top end.

Rider ergonomics are optimized by adapting the handlebar, seat and footpeg height to place the rider’s legs at the narrowest part of the frame for improved comfort and handling feel.

Adjustable front-brake lever for improved control.

Quick-adjust clutch perch instead of easy cable adjustment.

Aluminum Renthal handlebar (971 bow) is rubber-mounted to help depress rider fatigue and improve comfort.

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Specifications

Model: CRF250R

Engine Type: 249cc liquid-cooled single-cylinder four-stroke

Bore and Stroke: 76.8mm x 53.8mm

Compression ratio: 13.2:1

Valve Train: Unicam, four-valve; 30.5mm intake, titanium; 25mm exhaust, steel

Induction: PGM-FI, 50mm throttle body

Ignition: Full transistor with electronic push

Transmission: Close-ratio five-speed

Final Drive: #520 chain; 13T/48T

Suspension
Front: 48mm inverted Showa 16-position rebound and 18-position compression damping adjustability; 12.2 inches travel
Rear: Pro-Link Showa single shock with spring preload, 20-position rebound damping adjustability, and compression damping adjustment separated into low-speed (18 positions) and high-speed (1.5 turns); 12.6 inches excursion

Brakes
Front: Single 240mm disc with twin-piston caliper
Rear: Single 240mm disc

Tires
Front: Dunlop 742FA 80/100-21
Rear: Dunlop D756 100/90-19

Wheelbase: 58.8 inches

Rake: (Caster Angle): 27° 9’

Trail: 116mm (4.56 inches)

Seat Height: 37.6 inches

Ground Clearance: 12.8 inches

Fuel Capacity: 1.5 gallons

Color: Red

Curb Weight: 226 pounds

Source: www.topspeed.com

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