Shimano fc m590 deore 9 speed 2 piece design chainset
Great value deore 2 piece design chainset for 9 speed transmissions the 2 piece design chainset features an external bottom bracket system which is a lightweight rigid design that is incredibly strong and durable lightweight and rigid steel bottom bracket axle sg x chainring with patented spike pins give smooth and fast gear shifts under load lightweight aluminium outer with steel middle and inner chainrings we recommend that the bottom bracket is initially installed by a bike sho