Shimano xt m780 10 speed rear mech 10spd rear xt derailleur made strong and durable to stand up against time shimano deore xt rear derailleur 10sp m780 features deore xt shadow dyna sys 10 speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight open design shadow features a super low profile design that reduces the risk of damage from trail side hazards single tension spring prevents contact with the chainstay resulting in a silent ride direct cable routing pr