Across Dura-Ace 9100, Shimano made subtle, rather than monumental, shifts in design to improve a system that was already pretty good.
Proving that mechanical drivetrains can”and still should be improved, Shimano focused most of its attention on the derailleurs, making the largest changes to ride experience with crucial tweaks to both the front and rear derailleurs' designs. The resulting Dura-Ace FD-R9100 11-Speed Front Derailleur delivers strong improvements to its predecessor's shortcomings, behaving far more consistently than its often moody forebears, whose changes in attitude could be set off by cable entry angles and cable tension that didn't suit it.
1 - Natural front shift lever stroke
2 - Available wider front gear pitch
3 - More ergnomical power curve
4 - More cable routing options
5 - Integrated cable tension adjustment
6 - Adjustable cable tension on the front derailleur
1 - Top Gear Teeth:46-55T
2 - Chainstay Angle:61-66
3 - Chain Line:43.5
4 - Weight: 69g
5 - Speed:11 Speed
6 - Diameter:Braze On
7 - Derailleur Type:Braze On