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Shimano Dura-Ace FC-7900
Standard Crankset 
Untitled Document
- The iconic Hollowtech II hollow forged crank has always been a benchmark for strength to weight performance characteristics and is the perfect platform for a crank intended to be used at the highest echelon of competition.
- Combined with a hollow outer chainring the crankset is 20% stiffer for optimal power transfer while still saving 15 grams.
- Other changes include redesigned chainring teeth for better contact and power transfer.
- Improved bottom bracket seals further reduce contamination and friction.
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