Engine

Engine Type single cylinder, 4-stroke
Displacement (cc) 249.5 cc
Bore / stroke (mm) 76 / 55 (2.99 / 2.17“)
Compression ratio 12.8 : 1
Starter kick starter
Transmission 6 gears
Carburetor Keihin MX FCR 39
Control 4 V / DOHC with finger levers
Lubrication pressure lubrication with 2 Eaton pumps
Transmission lubrication -
Engine oil 1.2l Motorex Power Synt 4T 10W-50
Primary ratio 22 : 68
Final drive 13 : 48
Cooling liquid cooled
Clutch wet multi-disc clutch, operated hydraulically
Ignition Kokusan digital 4K-3A

Chassis

Frame central double-cradle-type 25 CrMo4
Subframe aluminum 7020
Handlebar Renthal Ø 28/22 mm (1.10/0.87”)
Front suspension WP-USD Ø 48 mm (1.89“)
Rear suspension WP-PDS shock absorber
Suspension travel front/rear 300 / 335 mm (11.81/13.19”)
Front / rear brakes disc brakes 260 / 220 mm
Front / rear rims 1.60 x 21“; 2.15 x 19”
Front / rear tires 80/100-21“; 100/90-19”
Chain chain 5/8 x 1/4“
Main silencer aluminum
Steering head angle 63.5°
Wheelbase 1481±10 mm (58.31±0.39”)
Ground clearance (unloaded) 380 mm (15“)
Seat height 925 mm (36.42”)
Fuel capacity approx. 7 liters (1.85 gal)
Weight (ready to race, no fuel) approx. 98.5 kg (216 lbs)