DESCRIPTION Our Box Two tier's mission in life is to deliver performance similar to the Box One Downhill 7-speed package but without its exotic (and costly) features. You still get the Tri-Pack (TM) Clutch in our derailleur only it isn't adjustable. We still use the close range 11-24T DH specific cassette. The action on the shifter is just as snappy although you don't get the rigid die-cast pull lever. The chain boasts the same 11-speed architecture except you give up the chrome top coat (don’t worry you’ve got nickel in its place). You're hardly shortchanging yourself with Box Two. FEATURES Our Most Durable Drivetrain For Aggressive Terrain Fast Action Release Lever (V1) Cassette Compatible with HG Freehub Bodies Tri-Packâ„?Limited Slip Clutch Compatible with Traditional Derailleur Hangers (Non Direct-Mount) BX-DT2-07BDH-KIT SPECIFICATIONS Speeds 7 Speed Materials 6061-T6 Aluminum, Carbon Fiber/Nylon Composite Pulleys Closed Bushings Cage Size DH Maximum Cog 24T Hardware Aluminum / Cr-Mo Alloy Color/Finish Hard Onyxâ„?/td> Weight [Derailleur] 279 grams / 9.8 ounces Technology Tri-Packâ„?Limited Slip Clutch, Pivot Techâ„?/td>