evo.com | Shimano Rear Derailleurs > The Shimano Saint RD-M820 Shadow+ 10-Speed Rear Derailleur is designed for one thing: gravity-laden assaults. If you're kitting out a new downhill rig or a new setup for shuttled car laps, grab the simple, bare-bones RD-M820. Keep that chain tracking smoothly and the gears spinning no matter the conditions. With two modes, the Shimano Saint RD-M820 Shadow+ 10-Speed Rear Derailleur can accommodate a ten speed DH cog or Trail cog with ease. Shimano Rear Direct Mount Shadow + Chain Stabilizer Simple, lightweight chain control solution. Shimano Mountain Rear Derailleur/.Shifter Compatibility Mode Converter Allows the derailleur to track different types of cogsets. Saint-Specific Shadow + Integrated urethane bump stopper doubling-down on Shadow Plus functionality. | Shimano Saint RD-M820 Shadow+ 10-Speed Rear Derailleur 2022 - Short Cage in Black