Lengths: 165, 170, 172.5 or 175mm
Chainrings: 34 x 50
Weight: 710 g.

Ultegra 6600G Bottom Bracket sold separately

Ice Grey finish. Hollowtech II design maximizes stiffness while keeping weight to a minimum. Precision two-piece construction for perfect chainline and chainwheel alignment. New compact, 50X34. New two-tone chainring cosmetic. Aluminum chainring bolts and steel bottom bracket axle. Outboard bearings maximize stability and stiffness. Requires BB external cups (sold separately). 710 g.

Item Code: SSFIAS4W