Wheels Manufacturing Bottom Bracket Socket Mountain Bike Helmets Allows placement in two orientations

Allows placement in two orientations for increased versatility

Self-fabric backing on collar with internal neck tape for comfort

Plasma™ 10D outer shell is incredibly light and exceptionally breathable

without sacrificing up-mountain performance or durability

Zip the high collar up into the chin guard if the wind threatens your snug

Wheels Manufacturing Bottom Bracket Socket Mountain Bike Helmets Allows placement in two orientationsDouble sided socket tool for installing and removing both 48. 5mm and 44mm 16 notch bottom bracket cups. Compatible with all Wheels Manufacturing bottom brackets. Socket is machined for 1 2" drive, but a 3 8" to 1 2" adapter is included so you can use it with 3 8" drive torque wrenches. 48. 5mm, 16 notch pattern matches up with Wheels Mfg bottom brackets, along with some FSA MegaEVO bottom brackets. The 44mm, 16 notch side matches up with Wheels