Shimano's Ultegra Di2 Front Derailleur makes the dream of lightning-quick front shifting a reality. Its intelligent electric brain senses the location of your chain, providing impossibly fast, smooth and accurate shifting, even under load, with just the push of a button on your Ultegra Di2 shifter (sold separately). It also auto-trims to maintain clearance between the chain and cage no matter what chainring/cog combination you choose. You'll never miss a shift again and will hit the right ring faster than ever. And, because there are no cables and housing to stretch, wear or fail, you'll also love Di2's amazingly durable, reliable and silent operation.
Shimano Ultegra R8050 Di2 front derailleur. - Quick and smooth front shifting under high pedaling torque - Programmed control of chain guide - Shimano Synchronized shift - Full and semi synchronized shifting program - Redesigned to fit wider gear pitch without sacrificing shifting - Shorter length of rear center (410mm) with O.L.D. 135mm - System communication with rear derailleur, Programmed control of chainguide works for minimal chance of chain drop - Top Gear Teeth: 46-53T - Chain Stay Angle: 61-66 - Chain Line: 43.5 - Average Weight: 132 grams
- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Race Endurance For Less Damage In Crush - Quick And Smooth Front Shifting "Under" High Pedaling Torque - Maintains Compact And Smooth Appearance - Top Gear Teeth: 46-55T - Chain Stay Angle: 61-66° - Chain Line: 43.5mm
$614.99 - $619.99
- More powerful shifting (+25% compared to M9000) - Reliable gear changes under load - Computer controlled auto trim - Optimized Di2 cage profile and gear tracking - Shimano Synchronized Shift compatible - Manual control avaiable (2nd shifter required) - System communication with rear derailleur - Advantage in all conditions - Modular mounting structure (adapters optional)
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