RockShox Reba B1 Assembly

This assembly is designed specifically for the RockShox Reba B1 model. You should verify your fork's serial number or model year against the manufacturer's spare parts catalog to ensure it matches the B1 generation before purchasing.

No, this specific assembly is fixed at 80mm of travel. It is intended as a direct replacement for an existing 80mm air spring, not as a conversion kit to alter your fork's travel length.

This is a complete air spring assembly, but you will likely need fresh suspension grease and potentially new lower leg oil to complete the service properly. It is standard practice to replace the seals and fluids whenever you open up the air spring.

You typically need a replacement if your fork is losing air pressure over time, failing to hold sag, or if the fork feels harsh and lacks its usual small-bump sensitivity. If you have already replaced the air seals and the issue persists, the internal assembly itself may be worn or damaged.

Yes, you will need basic suspension tools, including a socket set for the lower leg bolts, a snap ring plier, and a high-pressure shock pump to set the sag after installation. Refer to the official RockShox service manual for your specific fork to see the exact tool list required.