Shimano Dura Ace 9000 11 Speed Chainring
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|Number of gears||11-speed|
|Shimano crankset||Dura Ace|
The Shimano Dura Ace 9000 crankset uses a B.C.D. of 110 mm in all configurations. This means that compact chainrings can be easily replaced by a double chain ring and vice versa. The new 4-arm design also keeps its weight low without sacrificing in terms of stiffness and strength.