Key Features:Gravity riding has progressed with bikes being lighter and trails getting faster. Saint has evolved with this giving a stiff, strong and durable HollowTech II crank set reinforced in all the ways that most extreme chainsets are not,These industry leading HollowTech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, and improve strength,Saint HollowTech II integrated bottom bracket design uses a wide bearing placement and a large axle diameter for increased stiffness and efficiency combined with longer bearing cup threads for added durability,Saint M820 series crank sets are Dyna Sys 10-speed compatible giving the rider more gear combinations whilst maintaining low weight,Reinforced pedal and crank arm interface with T-nut style steel threaded bushing,Crank arm profile gives excellent ankle clearance, while increasing rock clearance by removing unneeded material from the end of the crank arm,Available as a separate crankset (without chainring), for either 68/73 mm or 83 mm frame sizes.