My-TREK-Procaliber - Build. RaceFace - NEXT/SL - Gen5 Carbon Fibre Cranks are sturdy and light. So far no problems at all. They are 170mm arm length. I use them with the Shimano XT SPD pedals, mated to Giro shoes.
My-TREK-Procaliber - Build. RaceFace crank Kit features the NEXT/SL - Gen5 Carbon Fibre Cranks, Sealed Ceramic Bearing Bottom Bracket, and the "PROTOTYPE" Chain Ring
My-TREK-Procaliber - Build. The box label announces that this is the special edition - RaceFace crank Kit that features the NEXT/SL - Gen5 Carbon Fibre Cranks.