Shimano deore xt m786 10 speed rear derailleurenhanced with shimanos ldquoshadowrdquo chain stabilising clutch, the deore xt m786 rear mechanism delivers excellent chain retention as you take on the toughest trails'. '.strtoupper('c')ompatible with shimano's entire 10 speed mountain bike mtb range, it's constructed with fluorine coated inner bushings for smoother operation and lightning quick gear changes'. '.strtoupper('t')he switchable clutch is engaged to add chain tension for riding over tree roots, rock gardens and the toughest sections of the trail, then when you need to remove your rear wheel, simply switch it back to slacken the chain.featuresmaterial aluminium alloy speed 10 speed cage size long mount type standard hanger mount or direct mount clutch type yes compatibility all 10 speed shimano mountain bike mtb drivetrains maximum low gear sprocket 36t minimum low gear sprocket 32t maximum front difference 18t capacity 35t strong return spring for a positive shifting feel durable sealed bearing pulleys direct mount compatible for a simpler, cleaner look dyna sys technology delivers reliable and precise shifting with a stiff and lightweight open design features a shadow cage with a super low profile design that reduces the risk of damage from trail side hazards features a shadow plus clutch which uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting'. '.strtoupper('t')his can be switched off to remove the wheeldirect cable routing prevents snagging from any trail side hazardsall alloy construction leads to lower weight without compromising strength and durabilityfour fluorine coated link pin bushings make this one of the slickest shifting derailleurs on the trailshigh rigidity wide outer link braces the pulley body to increase pivot joint rigidity resulting in a crisp shift manufacturer's part number rd m786 gsweight 262ga 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products.buy shimano components from chain reaction cycles, the world's largest online bike store.