The new bikes are sitting in a crate awaiting DOFB pickup and to say we’re getting fired up would be an understatement. We’re still a couple months out from decent East Coast off-road riding weather, so we should have plenty of time for the required wrenching. We’ve posted about the race-prep mods we’re considering making on the new CRFs, but the factory specs are probably a good place to start:

ENGINE

Engine Type 449cc liquid-cooled single-cylinder Unicam four-stroke
Bore and Stroke 96.0 x 62.1mm
Compression Ratio 12.0:1
Induction 40.0mm Keihin© flat-slide
Ignition CD

DRIVE TRAIN

Transmission Wide-ratio five-speed
Final Drive #520 T-ring-sealed chain; 13T/51T

CHASSIS / SUSPENSION / BRAKES

Front Suspension 47.0mm inverted Showa® cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4-inch travel
Rear Suspension Pro-Link® Showa single-shock with spring preload, 13-position [low-speed] and 3.5-turn [high-speed] compression damping and 17-position rebound damping adjustability; 12.4-inch travel
Front Brakes Single-disc with twin-piston caliper
Rear Brakes Single-disc
Front Tire 80/100-21
Rear Tire 110/100-18

DIMENSIONS

Rake 27.05 degrees
Trail 115 mm (4.5 inches)
Wheelbase 58.2 inches
Seat Height 37.9 inches
Ground Clearance 13.6 inches
Curb Weight 269 lbs (Includes all standard equipment, required fluids and a full tank of fuel-ready to ride)
Fuel Capacity 1.9 gallons

OTHER

Available Colors Red
Model ID CRF450X

The more I learn about these bikes, the more stoked I am to get riding. These things are supposed to be pretty damned mean machines stock and, as with any single cylinder four stroke, they’re bound to be particularly sensitive to adjustments. The modification process should be very rewarding.