Specifications

1
GENERAL INFORMATION
18
USA
FRONT SUSPENSION
“SACHS” hydraulic upside-down fork (Ø48 mm shafts)
spring ............................................................................................. K 4,8
oil type ...................................................................Motul Factory Line 5wt
oil quantity (from the top, without spring and with fork compressed) ...110 mm
REAR SUSPENSION
Single shock absorber with compound lever
spring ............................................................................................. K 5,2
precharge (spring in its seat) .........................................................247 mm
shock absorber stroke ................................................................... 135 mm
rear wheel stroke .........................................................................290 mm
FRONT BRAKE
Ø 260 mm disc and dual-piston fl oating caliper
REAR BRAKE
Ø240 mm disc and single-piston fl oating caliper
ENGINE
Type ................................................. Single cylinder, 4-stroke, liquid-cooled
with countershaft and electric starting
Bore x stroke RR 400 ........................................................... 95 x 56,2 mm
Bore x stroke RR 450 ........................................................... 95 x 63,4 mm
Bore x stroke RR 520 ......................................................... 100 x 63,4 mm
Displacement (cm
3
) RR 400 ...........................................................398 cm
3
Displacement (cm
3
) RR 450 ........................................................449,4 cm
3
Displacement (cm
3
) RR 520 ........................................................497,9 cm
3
Compression ratio RR 400 ..............................................................12,4:1
Compression ratio RR 450 ............................................................11,95:1
Compression ratio RR 520 ..............................................................12,0:1
Fuel system ............................................................................... carburetor