Tough, aggressive and light weight Dyna-Sys11 11-speed SLX rear derailleur using revolutionary features from XT and XTR at an affordable price pointShimano's Direct Mount compatible Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chain stays, increase axel sizes and move suspension pivotsShadow+ Dyna-Sys11 11-speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight open designShadow+ features a super low profile design that reduces the risk of damage from trail side hazardsThe shadow plus chain stabilizer tension can easily be adjusted externally via a hex keyShadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting. This can be switched off to remove the wheelShadow design slant angle has been optimized for use with 40-46T sprocketsDirect cable routing prevents snaggi