Shimano Dura Ace FC-7710 Track Crankarm

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Specifications:

• Reinforced Hollowtech Crankarms (Lightweight) 
• Octalink Splined BB Interface 
• Compatibility: Shimano Dura Ace Octalink Bottom Bracket - Track 
• NJS Certified

Shimano, Inc. is a Japanese multinational manufacturer of cycling components. Dura-Ace relies on Shimano's most advanced manufacturing technologies to deliver concentration, control and confidence.