Yamaha YZ450FF 1SL-28199-11 Owner's Service Manual page 48

Front brake
Type
Operation
Front disc brake
Disc outside diameter  thickness
Brake disk thickness limit
Brake pad lining thickness (inner)
Limit
Brake pad lining thickness (outer)
Limit
Master cylinder inside diameter
Caliper cylinder inside diameter
Recommended brake fluid
Rear brake
Type
Operation
Rear disc brake
Disc outside diameter  thickness
Brake disc thickness limit
Brake disc deflection limit
Brake pad lining thickness (inner)
Limit
Brake pad lining thickness (outer)
Limit
Master cylinder inside diameter
Caliper cylinder inside diameter
Recommended fluid
Steering
Steering bearing type
Center to lock angle (left)
Center to lock angle (right)
Front suspension
Type
Spring/shock absorber type
Front fork travel
Fork spring free length
Limit
Installed length
Spring rate K1
Spring stroke K1
Inner tube outer diameter
Inner tube bending limit
Optional spring available
Recommended oil
Standard oil amount
CHASSIS SPECIFICATIONS
Single disc brake
Right hand operation
250  3.0 mm (9.8  0.12 in)
2.5 mm (0.10 in)
4.4 mm (0.17 in)
1.0 mm (0.04 in)
4.4 mm (0.17 in)
1.0 mm (0.04 in)
9.52 mm (0.37 in)
22.65 mm  2 (0.89 in  2)
DOT 4
Single disc brake
Right foot operation
245  4.0 mm (9.6  0.16 in)
3.5 mm (0.14 in)
0.15 mm (0.0059 in)
6.4 mm (0.25 in)
1.0 mm (0.04 in)
6.4 mm (0.25 in)
1.0 mm (0.04 in)
11.0 mm (0.43 in)
25.40 mm  1 (1.00 in  1)
DOT 4
Taper roller bearing
43.0 °
43.0 °
Telescopic fork
Coil spring/oil damper
310.0 mm (12.20 in)
497.0 mm (19.57 in)
492.0 mm (19.37 in)
497.0 mm (19.57 in)
5.00 N/mm (0.51 kgf/mm, 28.55 lbf/in) (USA)
(CAN)
4.70 N/mm (0.48 kgf/mm, 26.84 lbf/in) (EUR)
(JPN) (AUS) (NZL) (ZAF)
0.0–310.0 mm (0.00–12.20 in)
48 mm (1.9 in)
0.2 mm (0.01 in)
Yes
Suspension oil S1
3
511.0 cm (17.28 US.oz, 18.02 Imp.oz) (USA)
(CAN)
3
551.0 cm (18.63 US.oz, 19.43 Imp.oz) (EUR)
(JPN) (AUS) (NZL) (ZAF)
2-9