The biggest difference in the new 5800-series front mechanism is a longer link arm and a lower trim position. The latter helps to minimize the possibility of chain drop. New springs have also been added for faster, more reliable shifting both up and down.
- For 11 speed drivetrains
- Compatible chain: HG-EV 11-speed/ HG-X11
- Mount: Clamp band
- Clamp diameter: 34.9mm (adaptor for 31,8 and 28,6mm)
- Down swing
- Chain line: 43.5mm
- Chain stay angle: 61-66 degree
- Top gear teeth: 46-53T
- Total capacity: 16T
- Weight: 104g
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