Brake system of motorcycle Aprilia RS125/3 (1998-2005)

Front brake construction
19. Brake disc; 20. Brake caliper mounting bolt; 21. Brake caliper; 22. Bleed nipple; 23. Brake fluid hose; 24. Brake pad retainer; 25. Brake pads; 26. Brake pad cover For detailed information: see 1.3.1 ; see 2.12.1 ; see 2.12.5 ; see 2.12.3....

Replacing the front brake pads
Read 1.2.1 and 2.12.3 carefully. Place the motorcycle on the side stand. Remove the brake caliper cover (1). Release the retaining ring (2). Withdraw the pin (3) and collect the clip. Remove the brake pads (4). Warning! Do not operate the brake...

Front brake disc inspection
Note. The operations described below are to be performed with the brake disc installed to the wheel. Check for wear measuring disc thickness with a micrometer gauge at different positions along the disc. When a disc is worn beyond the service limit...

Front brake disc removal
Read 1.2.1 carefully. Torque wrench setting: Screws (1): 22 Nm (2.2 kg·m). Remove the front wheel; see 7.5.2. Note. The screws (1) are retained with LOCTITE® 243. Use of an air gun is recommended to release the screws. Release and remove the six...

Rear brake construction
27. Brake fluid reservoir; 28. Rubber hose - reservoir to pump; 29. Brake disc; 30. Brake caliper carrier; 31. Brake caliper; 32. Caliper pin and clip; 33. Brake caliper cover; 34. Pair of brake pads; 35. Bleed nipple; 36. Clips; 37. Rear brake...

Replacing the rear brake pads
Read 1.2.1 and 2.12.3 carefully. Place the motorcycle on the stand. Remove the brake caliper cover (1). Release the retaining ring (2). Withdraw the pin (3) and collect the clip (4). Remove the brake pads (5). Warning! Do not operate the brake lever...

Rear brake disc inspection
Note. The operations described below are to be performed with the brake disc installed to the wheel. Check for wear measuring disc thickness with a micrometer gauge at different positions along the disc. When a disc is worn beyond the service limit...

Rear brake disc removal
Read 1.2.1 carefully. Torque wrench setting: Screws (1): 10 Nm (1.0 kg·m). Remove the rear wheel; see 7.6.2. Note. The screws (1) are retained with LOCTITE® 243. Use of an air gun is recommended to release the screws. Release and remove the five...

Removing the brake master cylinder
Torque wrench settings: Screws (5): 10 Nm (1.0 kg·m). Disconnect the brake light switch connector (1). Drain the rear brake circuit; see 2.12.2. When all fluid has drained out, unscrew and remove the connector (1). Detach the hose (2) to the rear...