Double charinring crankset with 50/34T chainrings (110mm bolt circle) Road/Cyclocross/ Gravel/Triathlon/ Time Trial 172.5 mm crankarm length 10/11 speed drivetrain 30mm spindle diameter for BB30 bottom bracket Ultralight - 542g complete as shown Complete with hardware: Center fixing bolt, seal bolt, BB30 spacers/spring washer Mileage unknown Some visible shoe rub. No known structural issues. Sold "AS IS."