- Lighter And Intuitive Shifting Operation - Natural Front Shift Lever Stroke - More Ergnomical Power Curve - New Link (Toggle) Construction - Precise & Easy Front Derailleur Set Up - More Cable Routing Options - Integrated Cable Tension Adjustment - New Link (Toggle) Construction For No Need Of Tl-Fd90 And Turning Converter Assembling - Adjustable Cable Tension On The Front Derailleur - Adapted For Race Specific Frame Design - Available Wider Front Gear Pitch - Shorter Length Of Rear Center With O.L.D. 135mm - Top Gear Teeth: 46-55T - Chain Stay Angle: 61-66 - Chain Line: 43.5mm