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Great Fitting Helmet Honestly the most comfortable helmet I've ever worn
The problem on our helmet is that as the face shield is opened and closed, the locking lever is gradually pulled forward, due to the friction between the face shield and the lever
Taking into account efficiency losses in both generator and friction drive, you need to put at least 150 watts on the pedals to obtain a power output of 100 watts
For only a few extra dollars, thorn resisting tubes, tractor tires or caliper brakes could be included
