Box One Prime 9 Speed ShifterThis 9 speed shifter is the only shifter on the market that comes factory stock with a hinged (and machined) clamp. It’s top of the line model and comes packed with other features such as a durable cast aluminium pull lever and top shell for exceptional strength on the mountain bike trails.All Prime 9 shifters take advantage of the 9 speed’s inherent durability, simplicity, and reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. And the best part is? Prime 9 is also terribly forgiving so you won’t have to constantly adjust your set-up.FAQ:Does the Box One Prime 9 Shifter come with a cable? Yes. All Box One Twin Lever Shifters come with a stainless steel shift cable.How do I remove the cap from the cable port to install a new cable? To remove it, use a Phillips head screwdriver and turn it counter-clockwise a quarter turn You can then push the cap out by applying pressure to the cable from the other side. Please Note: The Cable Port is not a screw that un-threads from the cable port, if you turn the cable port screw more than 90 degrees damage may occur.Is the Box One Prime 9 Shifter compatible with other 9 speed derailleurs? No, traditional 9 speed systems use a Cable Pull that is not compatible with prime 9.Features: Material: Glass Fibre / Nylon Composite, Steel, Aluminum Alloy with Hard Onyx finish Lightweight Hinged & Machined Clamp 1 Pc Pull Lever / Up to 3 Gears Per Shift Fast Action Release Lever Die Cast Top Shell Prime 9 TechnologyCompatibility: Box One Prime 9 11-50T Cassette Black Box Two Prime 9 11-50T Cassette Black Box Three Prime 9 Cassette Black Box One Prime 9 Chain 126L DLC Black Box Two Prime 9 126 Link Chain Nickel Box Three Prime 9 126 Link Chain Polished Box One Prime 9 Rear Derailleur Box Two Prime 9 X-Wide Rear Derailleur Black Box Three Prime 9 X-Wide Rear Derailleur Black Multi Shift Option Not Intended for E-Bike Use Single Shift Option Recommended for E-Bike UseWeight: 130gBuy Box Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.