Shimano Tiagra 4550 9 Speed Compact Chainset - 50/34T - 170mm Arm - Silver
This 2-piece cap-free design Tiagra level 9-speed compact chainset offers unbeatable performance, sporting many features from the pro-level equipment, this allows a quick and easy installation whilst delivering a lighter feel compared to the traditional crank/bottom bracket assembly. If you need quick and positive shifting, then the SG-X chainrings with its pick-up pins and tooth profiles will be right up your street - with other benefits. Anyone using this chainset will instantly benefit from quieter running as well as a smoother shifting directional chain - bringing an improved power that is worthy of the Tiagra standard.
- Sporting many features from pro-level equipment, this 2-piece cap-free design Compact chainset offers unbeatable performance
- 2-piece cap-free design is quick and easy to install whilst being lighter and stiffer than a traditional crank / bottom bracket assembly
- Compact 50 and 34 tooth SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting
- Designed to work with HollowTech II type bottom bracket cups
- 9 Speed
- Polished aluminium crank arms
- Includes both crank arms
- Lightweight aluminium chainrings
- 110 mm bolt circle diameter
- Crank arm length: 170mm
