VOR SM 503

Make Model	VOR SM 503
Year	2001
Engine	Four stroke, single cylinder, SOHC. 4 valves per cylinder.
Capacity	503 cc / 30.7 cu in
Bore x Stroke	95 x 71 mm
Compression Ratio	11.2:1
Cooling System	Liquid cooled
Induction	Dell'Orto PHM 38Z5
Ignition	SEM electronic with 140W alternator
Starting	Electric and Kick
Spark Plug	NGK CR 7RK / NGK CR 8RK, advance: 32º
Clutch	8 sintered-plate + 7 metallic-plate in oil bath
Transmission	3 Speed
Final Drive	Chain
Gear Ratios	1st 18:28 / 2nd 21:26 / 3rd 23:24
Frame	Perimetral frame, CrMo, Oval cross-section spars, aluminium rear frame
Front Suspension	Progressive system upside down fork, Paioli Kayaba 46 mm
Front Wheel Travel	260 mm / 10.2"
Rear Suspension	Single progressive hydraulic Öhlins shock absorber, low-high speed adjustable preload extension and compression
Rear Wheel Travel	295 mm / 11.2"
Front Brakes	Single 320 mm disc, 4 piston caliper
Rear Brakes	Single 220 mm disc, 2 piston caliper
Front Tyre	120/70-17
Rear Tyre	150/60-17
Dimensions	Length: 2120 mm / 83.5"
Wheelbase	1485 mm / 58.5"
Ground Clearance	330 mm / 13.0"
Seat Height	920 mm / 36.2"
Dry Weight	115 kg / 254 lbs
Fuel Capacity	9 Litres / 2.4 US gal
Engine Oil Capacity	1.4 Litres / 3.0 US pts