Product Description The Charger RD2 2P Crown Upgrade Kit from RockShox for your SID C1+ from 2021 model with 35 mm stanchion tube diameter With this upgrade kit from RockShox you get a Charger Race Day 2 (RD2) damping system with 2-position Crown Adjust for your SID suspension fork from model year 2021 with 35 mm stanchion tube diameter. Race Day 2 damping is above all light and fast. With the 2P Crown Adjust, you can switch between the two compression settings Open and Lock on the fork crown. The kit includes all internals of the right fork leg. Compatibility:SID 35 mm C1+ as of 2021 modelManufacturer Number:00.4318.086,002 Contents:1 x RockShox Charger RD2 2P Crown upgrade kit Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com