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K & J Thomas Motorcycles
(03) 9716 2019 2110 Plenty Rd Whittlesea, VIC
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Specification Sheet

300 SEF-R 4T



- New hand guards with more flex thanks to built-in rubber
- New graphics
- New plastics with 20% more flex
- New seat
- New headlight mount, globe and backing rubber
- Speedo unit has new membrane for superior water resistance
- New rim-locks
- Revised rear axle torque setting
​- New easier-to-access radiator cap
- New header pipe and silencer (better low RPM response, more power and silencer is 300grams lighter)
- New ignition mapping to suit
- New piston (higher compression)
- New conrod and crank shaft
- New T-section in water hoses
- Updated fuel pump
- NSW WP 46 shock with revised settings


Engine: 4 stroke DOHC, 4 valve Sherco technology
Engine: liquid-cooled single cylinder DOHC 4-valve 4-stroke
Displacement: 303.68cc
Bore and Stroke: 84 × 54.80mm
Fuel System: Synerject digital electronic fuel injection
Start: Electric
Battery: 12v/4Ah Yuasa
Ignition: Shihlin alternator 220 W
Transmission: 6-speeed
Clutch: Hydraulic multi-disc in oil bath
Exhaust: Stainless steel header pipe, aluminum muffler with catalytic converter meets Euro 3 stds.
Frame: Chrome-Molybdenum steel semi-perimeter
Fork: 48mm open chamber WP with 300mm of travel
Shock: Progressive WP shock with 330mm of travel
Brakes: Brembo hydraulically activated with 260mm front disc and 220mm rear disc
Front wheel: 1.60 × 21”
Rear wheel: 2.15 × 18”
Wheelbase: 1480mm
Seat height: 950mm
Ground clearance: 355mm
Fuel capacity: 9.7-litres
Weight: 102kg (dry)

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