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Backcountry Description: The Di2 RD-7970 Rear derailleur relies on the performance of servo-activated movement to provide undeniably fast and precise shifts every time. Through computer automated movement, every shift is analyzed and then synchronized by a servo motor for identical and exact shifts. While precisions is key, flexibility is worthy of note. Like the RD-7900 mechanical derailleur, a carbon pulley cage can accommodate hill-devouring 12-27t cassettes or mile-crunching 12-21's. The Di2 rear derailleur marks the beginning of a new era in high performance road shifting.
RealCyclist Description: The Di2 RD-7970 Rear derailleur relies on the performance of servo-activated movement to provide undeniably fast and precise shifts every time. Through computer automated movement, every shift is analyzed and then synchronized by a servo motor for identical and exact shifts. While precisions is key, flexibility is worthy of note. Like the RD-7900 mechanical derailleur, a carbon pulley cage can accommodate hill-devouring 12-27t cassettes or mile-crunching 12-21's. The Di2 rear derailleur marks the beginning of a new era in high performance road shifting.
JensonUSA Description: 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.
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Return to ProductPlease Note: We are not a retailer and do not sell these products directly. This product (Shimano Di2 RD-7970 Rear Derailleur) is one of thousands of products available in our comparison shopping engine on GEAR.com. Browse, shop and buy from GEAR.com Trusted Stores. If you have any questions about these products, please contact the listed merchant for assistance.