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SPEC
CHASSIS SPECIFICATIONS
Steering
Steering bearing type Taper roller bearing ----
Lock to lock angle (left) 44.0° ----
Lock to lock angle (right) 44.0° ----
Front suspension
Suspension type Telescopic fork ----
Front fork type Coil spring/oil damper ----
Front fork travel 225.0 mm (8.86 in) (XT660R)
200.0 mm (7.87 in) (XT660X)
----
----
Spring
Free length 633.0 mm (24.92 in) (XT660R)
593.0 mm (23.35 in) (XT660X)
620 mm
(24.41 in)
581 mm
(22.87 in)
Spacer length 0 mm (0 in) ----
Installed length 628.0 mm (24.72 in) (XT660R)
588.0 mm (23.15 in) (XT660X)
----
----
Spring rate (K1) 3.75 N/mm (0.38 kg/mm, 21.41 lb/in)
(XT660R)
3.75 N/mm (0.38 kg/mm, 21.41 lb/in)
(XT660X)
----
----
Spring stroke (K1) 0 ~ 120.0 mm (0 ~ 4.72 in) (XT660R)
0 ~ 120.0 mm (0 ~ 4.72 in) (XT660X)
----
----
Spring rate (K2) 6.00 N/mm (0.61 kg/mm, 34.26 lb/in)
(XT660R)
6.00 N/mm (0.61 kg/mm, 34.26 lb/in)
(XT660X)
----
----
Spring stroke (K2) 120.0 ~ 225.0 mm (4.72 ~ 8.86 in)
(XT660R)
120.0 ~ 200.0 mm (4.72 ~ 7.87 in)
(XT660X)
----
----
Optional spring available No ----
Fork oil
Recommended oil Fork oil 10 W or equivalent ----
Quantity (each front fork leg) 640.0 cm
3
(22.53 Imp oz, 21.64 US oz)
(XT660R)
600.0 cm
3
(21.12 Imp oz, 20.29 US oz)
(XT660X)
----
----
Level (from the top of the inner
tube, with the inner tube fully com-
pressed, and without the fork
spring)
125.0 mm (4.92 in) (XT660R)
125.0 mm (4.92 in) (XT660X)
----
----
Inner tube outer diameter 43.0 mm (1.69 in) ----
Inner tube bearing ---- 0.2 mm
(0.0079 in)
Item Standard Limit