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With the Shimano Dura-Ace CS-7900 Cassette 10-spd, shifting has been even further improved by creating an even more rigid (and lighter) aluminum carrier unit along with re-engineered teeth profile. Cassette design is lighter as Shimano has developed a super lightweight and rigid aluminum cassette sprocket carrier. The largest four cogs are titanium and weight is reduced by 10 grams.
Gear Ranges: 11-23 or 11-27,
Weight: 163 g. (11-23)
For guaranteed Christmas arrival, items must be in stock at the time of the order. Also, the deadlines may be different for bikes, frames & wheels which require additional time for prep and assembly. Questions? Contact us.