Thanks to its Shadow RD+ low-profile design and close ratio compatibility the Shimano Saint RD-M820 rear derailleur is ready for the rough and tumble world of gravity racing.
Shimano Saint specific Shadow+ design offers a rear derailleur with less distraction for a quiet drive train and features an adjustable stabilizer to reduce chain slap
Mode Converter allows the derailleur to track different type of cogsets
DH mode is a close ratio mode to track up to a 23t-28t low gear
AM mode is optimized for a wider ratio cogset with a 32t - 34t low gear
The rear derailleur features a high-durometer urethane bump stopper improves rider focus by silencing derailleur noise in rough conditions
Spring force and stabilizer friction creates high chain tension for chain security
