The Noir Team crankset has been built to handle a whole range of terrain from XC all the way up to All-Mountain. The Noir team is stiff and strong utilising an aluminium spine which is then wrapped in uni-directional carbon to give this crank amazing strength and durability. The Noir includes the GXP external bottom bracket and what is unique to the GXP bearing system is that it does not rely on preloading the bearings to get the left crank arm installed. Once the left crank arm is tightened to the correct torque on the spindle, the crank arm is then able to spin freely and smoothly without any chance of preloading your bottom bracket bearings. The GXP utlises 8 seals to eliminate mud and grit getting into your bottom bracket and destroying the bearings.
The Noir crankset is amazingly stiff while still being ultra light weight at only 805g including the GXP bottom bracket, the two large rings have been heavily manipulated by the CNC machine to give precise and direct shifts as well as being thick enough to resist any lateral deflection maintaing all your power transfer to the back wheel, they are then hard anodized to give a durable exterior finish. An amazing looking crankset that is not only stiff and strong but pleases the weights out there.
GXP bottom bracket is not included with this crankset.