RockShox Seatpost Internal Floating Piston - 11.6818.053.000

Seatpost IFP (Internal Floating Piston) in grey for use with select RockShox suspension seatposts. Supplied as each. Compatible models include Reverb / Reverb Stealth A1 - C1, Reverb AXS (2020+).

Genuine RockShox component as found on the RockShox Spare Parts Catalog 2025. For help identify which spare you require, enter the Serial Number of your RockShox accessory into the SRAM Service to identify your accessory's Model ID. Then search the Spare Parts Catalog for your Model ID to see the list of compatible spares. Catalog, Serial Number Identifier Instuctions and the SRAM Service Hub are all linked below.

Compatible with the following RockShox models

REVERB / REVERB STEALTH A1 - A2 (2011-2016)
- SP-RVB-A1
- SP-RVB-A2
- SP-RVB-STLH-A1
- SP-RVB-STLH-A2

REVERB AXS A1-A2 (2020-2025)
- SP-RVB-AXS-A1
- SP-RVB-AXS-A2

REVERB B1 (2017-2019)
- SP-RVB-1X-B1
- SP-RVB-B1

REVERB STEALTH B1 (2017-2019)
- SP-RVB-ST1X-B1
- SP-RVB-STLH-B1

REVERB STEALTH C1 (2020-2023)
- SP-RVB-S-C1