Yeouch, that sounds painful. My wonky shoulders are wincing just thinking about it.
Other things not to do while biking: ride over skateboard jumps not wearing a helmet. My bf did that, the only time I've ever seen him not wear a helmet, and he ended up with a serious concussion, 8 stitches in his scalp, a night in hospital and a week on the sofa.
Our son who was with us then sure learned a lesson though...




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