Yes, the 2024+ SID (35MM) D1 can be upgraded to Charger Race Day 2 by installing any of the part numbers listed below. The 2024+ SID (35MM) Ultimate D1 already features the Charger Race Day 2 damper.
00.4318.086.002 Damper Upgrade Kit - CHARGER RACE DAY2 2- Position SID 35mm Crown (includes complete right side internals) - 35mm 100-120 Travel - SID C1+(2021+)
00.4318.086.003 Damper Upgrade Kit - CHARGER RACE DAY2 2- Position SID 35mm Remote (includes complete right side internals, remote sold separately) - 35mm 100-120 Travel - SID C1+(2021+)
00.4318.087.002 Damper Upgrade Kit - CHARGER RACE DAY2 3- Position SID 35mm Crown (includes complete right side internals) - 35mm 100-120 Travel - SID C1+(2021+)
00.4318.087.003 Damper Upgrade Kit - CHARGER RACE DAY2 3- Position SID 35mm Remote (includes complete right side internals, remote sold separately) - 35mm 100-120 Travel - SID C1+(2021+)
RockShox service kits and spare parts are best obtained through your local shop or dealer. See our dealer locator, below, to find a dealer near you. If no one is currently listed near you, then please search for local shops via your preferred web browser.
https://www.sram.com/en/dealer-locator
Manuals and additional information about RockShox and SRAM components can be found at our service site, linked below.
https://www.sram.com/en/service
Further questions?
Reach out to Rider Support by Asking A Question at the link below.
https://www.sram.com/en/rockshox/campaigns/rockshox-rider-support