Disc Brake System: Specifications

Front Brake Disk Thickness

Model 170.435/444/445/447/449
New 25 mm (0.984 in.)
Wear Limit 22.4 mm (0.881 in.)
Service Limit 23 mm (0.905 in.)

Model 170.465
New 28 mm (1.102 in.)
Wear Limit 25.4 mm (1.000 in.)
Service Limit 26 mm (1.023 in.)

Model 170.466
New 32 mm (1.259 in.)
Wear Limit 29.4 mm (1.157 in.)
Service Limit 30 mm (1.181 in.)

Rear Brake Disc Thickness

Model 170
New 9 mm (0.354 in.)
Wear Limit 7.3 mm (0.287 in.)
Service Limit 7.6 mm (0.299 in.)