Lightning Cranks BB view

Another view of the BB. The bearnings are BB 30 bearning mounted outside of the BB shell, just like Zipp does with the Vuma Quads. This means that you do not need a BB 30 frame.

Another view of the BB. The bearnings are BB 30 bearning mounted outside of the BB shell, just like Zipp does with the Vuma Quads. This means that you do not need a BB 30 frame.

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