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Radical improvement in front shifting is one of the most significant advances in 7800 Dura-Ace.
Improvements in shifting are derived not only from new technology, but also from the design of the front changer. The wide 22 tooth chnager boosts rigidity and strength. Flex is suppressed, creating sharp, precise shifts that are faster and smoother, even from low to high gears, off the saddle.
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