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| Engine type |
Single cylinder, 4-stroke, SOHC, 4-Valve, liquid cooled |
| Displacement |
447.92 |
| Bore / stroke |
89 / 72 |
| Compression ratio |
11 : 1 |
| Starter / Battery |
Electric starter / 4 Ah |
| Transmission |
5-speed XC semi-close-ratio + reverse |
| Carburetor |
Keihin FCR-MX 39 |
| Engine lubrication |
Dry sump, pressure lubrication with 2 Eaton pumps |
| Engine oil |
1.8 l fully synthetic 10W-50 |
| Primary ratio |
31 : 78 |
| Drive chain |
520 X-ring chain 5/8 x 1/4" |
| Cooling |
Liquid cooled |
| Clutch |
Wet multi-disc clutch, operated hydraulically |
| Ignition |
Kokusan digital |
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| Frame |
Chromoly |
| Sub frame |
Aluminum 7020 |
| Handlebar |
Magura tapered aluminum, Ø 28 mm |
| Front suspension |
Ohlins fully adjustable, twin A-arms |
| Rear suspension |
Ohlins PDS mono-shock, fully adjustable, swingarm |
| Suspension travel front/rear |
257 / 265 mm / 10.2 / 10.4" |
| Front brake |
180 mm / 7.08" floating WAVE discs, 4-piston fixed caliper x 2 |
| Rear brake |
200 mm / 7.87" disc, single piston floating caliper |
| Front / rear rims |
5.0" X 10.0" / 8.0" X 9.0" Douglas |
| Front / rear tires |
21" X 7" – 10" / 20" X 11" – 9" MAXXIS Razor |
| Final drive |
14 : 38 |
| Main silencer |
Aluminum XC w / Spark Arrestor |
| Length / width / height |
1,810 / 1,148 / 1,125 mm – 71.26" / 45.20" / 44.29" |
| Wheel base |
1280 mm / 50.39" |
| Ground clearance (unloaded) |
290 mm / 11.42" |
| Seat height |
820 mm / 32.2" |
| Fuel capacity |
approx. 13.4 liters / 3.54 U.S. gallons |
| Total weight (ready to race) |
approx. 163 kgs / 357.1 lbs (without fuel) |
Crawfordsville, IN: 2008-10-26
