Bell 4Forty Air MIPS Size:MD Delivers precise and reliable shifting

Delivers precise and reliable shifting for 1x10 or 1x11-speed drivetrains

so there's no risk of allergic reactions or damage to bike parts

FRAME: Aluminum Optimum G04 140mm

It excels both on and off the mountain

This Sirrus features a reliable set of components that are built to withstand years of daily abuse

Bell 4Forty Air MIPS Size:MD Delivers precise and reliable shiftingTRAIL LIFE The 4Forty Air MIPS is equipped with pro level features yet designed with the privateer in mind. With a sleek new shell design and 3 position visor, the benefits arent just visibly rad but functionally significant for increased air ventilation, effective sweat management, and better goggle compatibility. Our Float Fit system, built in Sweat Guide, and anti microbial Ionic+ padding ensures all day comfort, while integrated MIPS and extended