Details
* HollowTech-II (HT2): integrated drive-side spindle with external, wide-stance bottom bracket bearings for optimized rigidity and weight reduction (fits both 68/73mm shells with included spacers)
* Carbon-composite reinforced steel middle chainring with anodized alloy outer/inner chainrings for increased durability and Hyperdrive pin/ramp design for shifting performance
* Hollow-forged Duraluminum crankarm/spider with a 4-arm, 64/104mm BCD chainring interface designed for 50mm chainline and 135mm hub/frame spacing
* 850g with rings and BB @ 175mm
speed: 9sp
interface: HT2
rings: 22/32/44
length: 175mm
color: silver/black