NP241 Standard Strongbox BW1354 moves the rear levers forward

moves the rear levers forward

Technical Highlights

Want a 4 speed case

AND a  DIY builder's model that is case only - allowing you to use and install your own gears

NP241 Standard Strongbox BW1354 moves the rear levers forwardThe 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.