Sram X4 Rear Derailleur Black 9s / Max 36t

The X4 Rear Derailluer combines the best elements of SRAM shifting with a stylish design in an affordable price point.Intelligent material selection yields a lightweight high performance derailleur.A compelling option for your 7-,8- or 9-speed shifting needs.Specifications:- Speeds:9/8/7-speed - Material:Alloy B-knuckle , Alloy outer link - Weight:280g (long cage) - Outer Cage:Steel - Compatibility:1:1® - Inner Cage:Grilon® Composite - Bearings:Bushing - Cage Sizes:Long, Medium - Pulleys:Replaceable pulleys Technology:1:1®:1:1 Actuation is superior by design.Every unit of cable you pull moves the derailleur the same amount.Actuation stays precise and fluid slogging through mud, bouncing off rocks, rutting through roots wherever you find yourself, whatever conditions youre in.Its dependable.Tolerant.Easiest to set up.Easiest to adjust.And, not coincidentally, the top choice of the top MTB riders.Got it™ Good.Direct Route™:Heres the dirt on middlemen:they suck.Thats why Direct Route Technology doesnt have one.Instead, the cable routes directly to the actuation mechanism.Result™ Less friction.Less effort.More oomph.Plus its impervious to cable housing damage.For 2x10V systems.- Compatible with cassettes 11-42T.