Deore XT RD-M8200 12-Speed Hybrid Park Tool introduced the bicycle

Park Tool introduced the bicycle world to the three-way hex wrench over 40 years ago

Let the record show that the GX Eagle Transmission derailleur plays second fiddle to nothing

Replacement springs or clips incuded when required

allowing you extend the temperature range of your favorite Castelli pieces

Deore XT RD-M8200 12-Speed Hybrid Park Tool introduced the bicycleNEW The most robust DEORE XT mechanical rear derailleur to date promises a reliable, robust ride for every discipline. It's based around a modern hanger and a new low profile, wedge shaped design to avoid impacts on the trail. If it does hit rocks or roots, a spring inside the derailleur helps it absorb impact and return to its original position. With a 510% gear range, the RD M8200 derailleur is suitable for every ride, be it an enduro race or all