NP241 Standard Strongbox Twin Stick The Twin Stick Flip Kit

The Twin Stick Flip Kit utilizes our Colossus shifter system featuring adjustable

placement matters

you need to bore out your input retainer to fit the upgraded larger shaft

A Modern NP205 Replacement Case: The Colossus abandons outdated and easily bent shift fork technology from the 70’s

Tested Input Speed: Up to 13

NP241 Standard Strongbox Twin Stick The Twin Stick Flip KitThe NP241 Standard Strongbox underdrive by Behemoth Drivetrain is engineered for extreme strength, low weight, and incredible performance. The NP241 Strongbox is available as both a fully geared ready to install model, or a DIY version that is case only allowing you to choose and install your own gears. Gear Compatibility: The NP241 Standard Strongbox DIY case is designed to be compatible with NP231, NP233, NP236, NP241, NP243 and NP246 series gears.