The last time you went cycling, you must have been knocked down by an old geezer who obviously couldnât see you. Well, though it might have hurt, it couldnât have been worse than being bullied by those cycling jerks about your lack of speed. Looks like you still have not heard about the ultra-cool bicycle Speed Vest that glows in the dark and warn the trucker of your presence. Whatâs more, it also lets those blokes and jerks know, that you have been riding pretty fast, because, at the back your speed in mph could be seen. Duh!