Yamaha YZ 2023 Series, Owner'S Service Manual

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CHASSIS SPECIFICATIONS
2-5
EAM20129
CHASSIS SPECIFICATIONS
Chassis
Caster angle 27.2

Trail 116 mm (4.6 in)
Front wheel
Wheel type Spoke wheel
Rim size 21 x 1.60
Radial wheel runout limit 2.0 mm (0.08 in)
Lateral wheel runout limit 2.0 mm (0.08 in)
Wheel axle bending limit 0.50 mm (0.02 in)
Rear wheel
Wheel type Spoke wheel
Rim size 18 x 2.15
Radial wheel runout limit 2.0 mm (0.08 in)
Lateral wheel runout limit 2.0 mm (0.08 in)
Wheel axle bending limit 0.50 mm (0.02 in)
Front tire
Type With tube
Size 80/100-21 51M
Manufacturer/model DUNLOP/MX33F
Rear tire
Type With tube
Size 110/100-18 64M
Manufacturer/model DUNLOP/MX33
Tire air pressure (measured on cold tires)
Front 100 kPa (1.00 kgf/cm², 15 psi)
Rear 100 kPa (1.00 kgf/cm², 15 psi)
Front brake
Type Hydraulic single disc brake
Brake disc thickness limit 2.5 mm (0.10 in)
Brake disc runout limit (as measured on
wheel)
0.15 mm (0.0059 in)
Brake pad lining thickness limit 1.0 mm (0.04 in)
Master cylinder inside diameter 9.52 mm (0.37 in)
Caliper cylinder inside diameter (Left) 25.40 mm, 25.40 mm (1.00 in, 1.00 in)
Specified brake fluid DOT 4
Rear brake
Type Hydraulic single disc brake
Brake disc thickness limit 3.5 mm (0.14 in)
Brake disc runout limit (as measured on
wheel)
0.15 mm (0.0059 in)
Brake pad lining thickness limit 1.0 mm (0.04 in)
Master cylinder inside diameter 11.0 mm (0.43 in)
Caliper cylinder inside diameter 25.40 mm (1.00 in)
Specified brake fluid DOT 4
Front suspension
Type Telescopic fork
Spring Coil spring