This tough and stylish, 9-speed compatible, Mega-9 Alivio chainset offers excellent value for money. It has a slick hyperdrive shifting performance that all mountain biking enthusiasts have come to expect from Shimano, the leading company in their field. With a 2-piece design that features an external bottom bracket system which is more lightweight and rigid in design than traditional bottom brackets, the Mega-9 Alivio chainset has a drastically improved power transfer ration. And, multiple hyperdrive SG-X chainrings allow for smooth and fast shifting, even when the pressure starts to mount up!
- Offers slick hyperdrive shifting performance for off road enthusiasts
- 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
- Hyperdrive SG-X chainrings for fast and smooth gear shifts
- Replaceable chainrings
- 4-arm chainring, 104 / 64 mm BCD
- 9-speed compatible chainrings