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Rugged + waterproof to 33ft (10m) without a housingAdvanced wireless connection to GoPro accessories
so even the weeniest of weight weenies have no excuses
Reach adjust_Tool: Yes
Key Features
Optimum performance and fit
Shimano BB-7710 Bottom Bracket 68 x 109.5mm Dura Ace Track Size:68X109.5 Rugged + waterproof to 33ftFeatures Octalink Compared the power transfer of OCTALINK with the conventional square taper spindle, the 8 splined OCTALINK interface that connects bottom bracket and crank set increases the strength and rigidity for entire assembly. SPECIFICATIONS Model No BB 7710 Series DURA ACE TRACK 7710 Average Weight 244 g Remarks For track Compatibility Track Octalink splined system.
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