SRAM X5 is for trail enthusiasts the world over. You start the day on the trail, but you end the day pedaling the city streets. SRAM X5 is equally adept at handling both.Specifications:- Speeds: 9-speed- Material: Alloy B-knuckle, Alloy outer link, High Strength Grilon® Composite P-knuckle- Weight: 299g (long cage)- Outer Cage: Steel- Inner Cage: Steel- Bearings: Bushing- Cage Size: Long- Pulleys: Serviceable precision pulleysTechnology: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.