Microshift ADVENT-X CLUTCH 10-Speed Rear Derailleur Medium Black can be discounted Extra-long struts for improved range

Extra-long struts for improved range of fit

or 197mm spacing

quieter and requires less maintenance thanks to SIL-TEC surface treatmen

The Arch S1 is built on Stan's faster-engaging

Microshift ADVENT-X CLUTCH 10-Speed Rear Derailleur Medium Black can be discounted Extra-long struts for improved rangeWith a raceworthy weight and the right gearing for any situation, microSHIFT's top of the line ADVENT X rear derailleur delivers high end performance without high end headaches. By using a 10 speed chain and wide range 11 48t cassette with predictable, evenly spaced gear steps, ADVENT X allows you to find the right gear even in challenging conditions. Add in microSHIFT's proprietary ratchet and pawl clutch, larger pulleys with taller teeth for better