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According to UCI's official regulations Section 1.3.031 (emphasis mine) Wearing a rigid safety helmet shall be mandatory during competitions and training sessions in the following disciplines: track, mountain bike, cyclo-cross, trials and BMX, para-cycling, as well as during cycling for all events. During competitions on the road, a rigid ...


To avoid changing batteries, you could opt to get an external USB battery pack and power it off of that. That way you could get a continuous stream. If you got a big enough battery pack, you would most likely be able to power the iPhone and GoPro off of a single battery pack provided you found one that was big enough.

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