Brandon Semenuk riding Rampage on a Slopestyle bike this year.
what was the bolt under the BB he kept fiddling with?
I think it was adding resistance to the cranks. To stop them spinning while doing sweet stuntz. Makes it easier to get your feet back on the pedals if you know they are likely to stay in the same position.
@n3il started
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Brandon Semenuk riding Rampage on a Slopestyle bike this year.