2020 RR4T 480 RACING


Technical data?

Frame Molybdenum steel with double cradle split above the exhaust port
Wheelbase 1490mm
Max length 2180mm
Max width 807mm
Max height 1270mm
Seat height 940mm
Ground clearance 320mm
Footrest height 413mm
Dry weight 110.0 kg (front 53.0kg, rear 57.0kg)
Fuel tank capacity 8.0l
Reserve 2.0l
Cooling system capacity 1.3l
Front suspension Hydraulic USD close cartridge fork with ø 48 mm shaft
Rear suspension Monoshock with progressive compound lever
Shock absorber stroke 135mm
Front wheel travel 295mm
Rear wheel travel 290mm
Front brake Wave disc ø260 mm and double-piston floating caliper
Rear brake Wave disc ø240 mm and single-piston floating caliper
Front rim 21 x 1.6 - 36 holes
Rear rim 18 x 2.15 - 36 holes
Front tyre 90/90 - 21
Rear tyre 140/80 - 18
Type Single cylinder, 4-stroke, liquid-cooled
Bore 100mm
Stroke 60.8mm
Displacement 477.5cc
Compression ratio 11.86:1
Valve train DOHC finger follower / 4 valve, intake titanium, exhaust steel
Starter Electric starter
Ignition Kokusan
Spark Plug NGK LKAR 8A-9
Lubrication 2 oil pumps
Lubrication Synerjet dual electronic injection
Throttle body ø 42mm - Synerject
Clutch wet multi-disc clutch
Primary drive Z. 31/72
Transmission 6 Gears
Final transmission chain
Engine oil SAE 10W/50 0.8l + SAE 10W/40 0.8l
DMC Firewall is developed by Dean Marshall Consultancy Ltd