Forged alumunium arm/spider design with an integrated Power-Torque bottom bracket spindle
Enhanced Shifting Performance (ESP) Actuation System features two specialized sectors of the chainrings, an up-shift and a downshift section, for instantaneous shifting
Light alloy 11 speed chainrings with hard anodization, corrosion-proof and wear-proof treatments. Large chainring with ramps and 8 pins, plus alloy chainring and fixing bolts
Choose 34/50t (compact 110mm BCD) or 39/53t ( Standard 135mm BCD)
Power-Torque outboard bearing cupsets or integrated adaptors sold separately.
