Suzuki RM125 Owner's Service Manual page 169

15-6 FRONT AND REAR BRAKES
• Apply SUZUKI SILICONE GREASE to the O-ring.
 99000-25100: SUZUKI SILICONE GREASE
• Fit the new brake pads into the caliper.
• Tighten the brake pad mounting pin to the specified torque.
 Brake pad mounting pin: 18 N·m (1.8 kgf-m, 13.0 lb-ft)
NOTE:
* Inspect not to pinch the O-ring of brake pad mounting pin.
* Pump the brake pedal several times to seat the brake pads
after reassembling.