Which pre-2023 RockShox chassis can be upgraded with Charger 3 and DebonAir+? Existing ZEB chassis (2021-2022) can receive the Charger 3 damper upgrade and DebonAir+ air spring. Pike and Lyrik forks prior to MY23 cannot be upgraded with new internals. Have further questions? Reach out to RockShox Rider Support. Related articles Can I upgrade my current RockShox fork with a Charger 3 damper? Can I buy ButterCups aftermarket and add it to my existing RockShox fork? What´s the weight difference between the current and new MY23 RockShox forks (Pike, Lyrik, ZEB)? What are the performance benefits of the newly designed 2023 lower legs for Pike and Lyrik? Why did RockShox decrease the max travel for MY23 Pike and Lyrik forks?