Shiny Bikes :: Chainsets :: Road :: Shimano Dura Ace 10 Speed Double Chainset


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Shiny Bikes :: Chainsets :: Road :: Shimano Dura Ace 10 Speed Double Chainset

Shimano Dura Ace 10 Speed Double Chainset

Another technical import from our established MTB technology, the Dura-Ace Hollowtech II crank and bottom bracket combines race-proven hollow forging technology with the integrated crankset and bottom bracket.

They’re one unit now, not two. The number of parts is reduced, weight is reduced and efficiency has been radically increased. A combined FC/BB weight reduction of 30 grams has been achieved. In addition, Hollowtech II allows the bottom bracket bearings to be spaced wider apart (outboard bearings) and the axle and bearings themselves to be larger. The net result of course is a more effective load distribution, increased rigidity and stability, as well as longer service life. “Up off the saddle, on the big ring, the chain doesn’t rub the front derailleur cage” proclaim our top professional test riders.

When combined with the RD-7800, FD-7800 and the new CN-7800 10-speed chain, Dura-Ace Hollowtech II enables as close to a 100% transfer of power as exists. Plus, there’s the benefit of easier installation, adjustment and maintenance.

Chainrings 39/53

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