Honda has announced its 2011 off-road line-up which includes improves to its CRF450R and CRF250R motocross models. The models conform to new restrictions in Europe regarding the noise pollution of offroad bikes with a new muffler and exhaust system that comply with the 94 decibel rule.

Both the Honda motocross models have new ECU mapping to produce increased torque at low and midrange levels. A new throttle body and fuel injector have been developed and on the chassis front we get better subframe stiffness and new steering dampers. The suspension modifications are designed to produce bikes with better front-rear balance.

Both the CRF450R and CRF250R are available in red but there’s no word from Honda on pricing for its 2011 models yet. They join a competitive offroad sector this coming year and it you’re into motocross, then you’re spoiled for choice in 2011. Full specs of both models are after the jump and for more information check out the Honda site.

2011 Honda CRF450R and CRF250R

Honda CRF450R Specs

Engine

Engine Type 449cc liquid-cooled single-cylinder four-stroke
Bore And Stroke 96mm x 62.1mm
Compression Ratio 12.0:1
Valve Train Unicam®, four-valve; 36mm intake, titanium; 30mm exhaust, steel
Induction Programmed Fuel Injection (PGM-FI), 46mm throttle body
Ignition Full transistor with electronic advance

Drive Train

Transmission Close-ratio five-speed
Final Drive #520 chain; 13T/48T

Chassis, suspension, brakes

Front Suspension 48mm inverted KYB® Air-Oil-Separate (AOS) with rebound and compression-damping adjustability; 12.2 inches travel
Rear Suspension Pro-Link KYB single shock with spring preload, rebound damping adjustability, and compression damping adjustment separated into low-speed and high-speed; 12.5 inches travel
Front Brake Single 240mm disc with twin-piston caliper
Rear Brake Single 240mm disc
Front Tire 80/100-21
Rear Tire 120/80-19

Dimensions

Wheelbase 58.7 inches
Rake 27.2° (Caster Angle)
Trail 114.2mm (4.5 inches)
Seat Height 37.6 inches
Ground Clearance 13.1 inches
Fuel Capacity 1.5 gallons
Curb Weight TBD

Honda CRF250R Specs

Engine

Engine Type 249cc liquid-cooled single-cylinder four-stroke
Bore And Stroke 76.8mm x 53.8mm
Induction Programmed Fuel Injection (PGM-FI), 50mm throttle body
Ignition Full transistor with electronic advance
Compression Ratio 13.2:1
Valve Train Unicam®, four-valve; 30.5mm intake, titanium; 25mm exhaust, steel

Drive Train

Transmission Close-ratio five-speed
Final Drive #520 chain; 13T/49T

Chassis, suspension, brakes

Front Suspension 48mm inverted Showa cartridge fork with rebound and compression damping adjustability; 12.2 inches travel
Rear Suspension Pro-Link® Showa single-shock with spring-preload, rebound-damping adjustability, and compression-damping adjustment separated into low-speed and high-speed; 12.5 inches travel
Front Brake Single 240mm disc with twin-piston caliper
Rear Brake Single 240mm disc
Front Tire Dunlop 742FA 80/100-21
Rear Tire Dunlop D756 100/90-19

Dimensions

Wheelbase 58.6 inches
Rake Rake 27.2° (Caster Angle)
Trail 117mm (4.6 inches)
Seat Height 37.6 inches
Ground Clearance 12.8 inches
Curb Weight TBD
Fuel Capacity 1.5 gallons

(no votes)

0 comments