Pyörä

Beta RR 4T 498

 

 

Frame Molybdenum steel with double cradle split above the exhaust port
Wheelbase 1490 mm
Max length 2180 mm
Max width 807 mm
Max height 1270 mm
Seat height 940 mm
Ground clearance 320 mm
Footrest height 413 mm
Dry weight 115,7 kg (front 57,6 kg; rear 58,1 kg)
Fuel tank capacity 8,0 l.
Reserve 1l.
Cooling system capacity 1,3 l.
Front suspension Hydraulic USD fork with ø48 mm shaft
Rear suspension Monoshock with progressive compound lever
Shock absorber stroke 135 mm
Front wheel travel 290 mm
Rear wheel travel 290 mm
Front brake Disc ø260 mm and double-piston floating caliper
Rear brake 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
ENGINE
Type Single cylinder, 4-stroke, liquid-cooled
Bore 100 mm
Stroke 63,4 mm
Displacement 497,94 cc
Compression ratio 12,0:1
Valve train DOHC finger follower / 4 valve
Starter Kick- and electric starter
Ignition Kokusan AC-CDI
Spark plug NGK LKAR 8A-9
Lubrication 2 oil pumps
Fuel system carburettor
Carburettor Keihin FCR-MX 39
Clutch wet multi-disc clutch
Primary drive straight toothing Z. 31/73
Transmission 6 gears