This great value Shimano M590 Deore 2-piece design chainset for 9-speed transmissions features an incredibly lightweight, yet strong, durable and rigid external bottom bracket system.
- 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 shop to ensure perfect facing and fit
- Mega9 compatible