The shimano deore xt rd m786 design rear derailleur gives more space around the rear frame dropout resulting in easier wheel movement this extra space also allows frame designers to shorten chainstays increase axle sizes and move suspension pivots the rd m786 has a direct mount to give your bike a simpler cleaner look the derailleur has been designed to deliver reliable precise shifting with a stiff lightweight open design shimano have used their shadow technology to give the derai