RockShox Seat Post Clamp Kit - Reverb / Reverb Stealth C1(2020) MFPN=68551 4 Cassette Cogs 10-12-14-16-18-21-24-28-32-36-42 Color Silver

Cassette Cogs 10-12-14-16-18-21-24-28-32-36-42 Color Silver Cassette Body Type SRAM XD 11/12 Speed keyword search 1x11 Range 10-42 Drivetrain Speeds 11 Defined Color Silver Weight 268

X-Range gearing technology gives you more range and a smoother gear progression

Constructed from 6061 sandblasted aluminum

This link explaining 148mm Boost spacing will help you decide if you need the M5 or M8

46 color black weight 456g

RockShox Seat Post Clamp Kit - Reverb / Reverb Stealth C1(2020) MFPN=68551 4 Cassette Cogs 10-12-14-16-18-21-24-28-32-36-42 Color SilverRockShox Seat Post Clamp Kit Reverb Reverb Stealth C1(2020). External Reverb and Reverb Stealth parts that can be installed without needing to open the mechanism.