SHIMANO DURA ACE BB-7700 BOTTOM BRACKET

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SHIMANO DURA ACE BB-7700 BOTTOM BRACKET
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Dura-Ace was designed to give road racing cyclists a performance advantage by reducing bicycle-induced stresses during competition. Choose the BB-7700 for double cranksets, or the BB-7703 for a triple crank setup.

Multi-Bearing Construction: uses both ball and needle bearings to reduce flex for greater power transmission efficiency.

Material: Hollow chromoly splined spindle with alloy non-drive side cup
Weight: 173 grams
Compatibility: V-1, 8 spline spindle for Shimano road cranks only
Two Sizes: 109.5 Spindle for double cranks: 118 for triple cranks

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