Are MY23 Rockshox Hub End Cap Adapters backwards compatible? No, Hub End Cap Adapters are only compatible with MY23 Rockshox products (Pike, Lyrik, and ZEB). Have further questions? Reach out to RockShox Rider Support. Related articles Are there differences in RockShox lower legs between Ultimate and Select+? Does Charger 3 have a Lock setting? How do I adjust Rebound, High Speed Compression (HSC) and Low Speed Compression (LSC) on the RockShox RC2T damper? Is the Maxima Plush Dynamic Suspension Lube backwards compatible? How does Charger 3 compare to previous dampers in terms of ride feel?