Sram X3 Rear Derailleur

SRAM X3 is a great beginners or light adventurers rear derailleur.The X3 rear derailleur sets the standard for opening price point shifting performance.Driven by our patented 1:1® actutation ratio, the X3 offers an intelligent blend of performance and value.Specifications:- Speeds:9/8/7-speed- Material:Composite construction in B-knuckle and outer link, Steel inner link- Weight:210g (long cage), 204g (medium cage)- Outer Cage:Steel- Compatibility:1:1®- Inner Cage:Grilon® Composite- Bearings:Bushing- Cage Sizes:Long, Medium 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.Nice.For 2x10V systems.- Compatible with cassettes 11-42T.