Yamaha RD400 - Transmission and Chassis Specifications

"——'—MnHol
RD250 RD400
Item ~~ •
Transmission:
Primary reduction System
Gear
<s
Primary reduction ratio 3.238 (68/21) -—
Secondary reduction System Chain
«s
Secondary reduction ratio
2.235 (38/17) *—
Clutch
Wet, multi-disc type
*—
Gear box type
Constant mesh, 6-speed forward
*—
Operati ng System
Left foot Operation
Gear ratio: First
2.571 (36/14)
«—
Second
1.778 (32/18)
*—
Third 1.318 (29/22)
«—
Fourth
1.083 (26/24)
-*—
Fifth 0.962 (25/26)
*—
Sixth 0.889 (24/27)
Steering: Caster
27°30'
f—
Trail
108 mm (4.3 in) (GXAr)
108 mm (4.3 in)
106 mm (4.2 in) <S)(D)(E)(H)(B)
(Sw) (F)
Tire size: Front
3.00S18-4PR
<—
Rear
3.50S18-4PR (GXAr)
3.50S18-4PR
3.25S18-4PR (SXDXEXHXBXSwXF)
Suspension: Front Telescopic fork
«—
Rear Swing arm
*
Shock absorber: Front
Coil spring, oil damper
*—
Rear
Coil spring, oil damper
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