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Shimano DI2 RD-7970 Rear Derailleur

Item #: RD285B02
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Shimano Dura-Ace Di2 Rear Derailleur RD-7970-SS

The most precise and fastest gear changing available thanks to electronic technology.  This highly innovative digital technology provides a new level of performance for racers and top level riders.  The programmed motion controls the speed, position and timing to achieve high level of refinement.  To keep the weight low a carbon fiber pulley cage and titanium B axle was used.

Features

  • Di2 - Digital Integrated Intelligence - electronic shifting
  • Titanium B axle
  • Carbon fiber pulley cage
  • Programmed motion
  • Published weight 225 grams
Compatibility
  • Di2 Dura-Ace shiftlevers - ST-7970, ST-7971
  • Ten speed only
  • 27 tooth max cog
  • Di2 wire kit
Note - To complete the Di2 System all items listed below are required.  To maximize the performance and utilize Di2 to its fullest potential it is very highly recommended all other components(brakes/crankset/ect.) be Shimano Dura-Ace 7900 series.
Di2 Dura-Ace Controls or (Di2 Dura-Ace TT/Tri Brake Lever & Di2 Dura-Ace TT/Tri Bar-End Shifters)
Di2 Dura-Ace Front Derailleur
Di2 Dura-Ace Rear Wire kit
Di2 Dura-Ace Front Wire Kit
Di2 Dura-Ace Battery
Di2 Dura-Ace Battery Charger
Di2 Dura-Ace Charger Cable

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Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items

Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.