Originally Posted by NoviceJohn

I'm still a noob but I always wanted to ask this question. So yea, cyclists on the road are required to obey all traffic signs and lights, therefore, we have to watch our speeds just like when we're driving a motor vehicle. When you go buy a bike, bikes are not required to come with a built-in speedometer (like your car). A cyclocomputer is and has always been an accessory and law does not mandate cyclists to put one onto their bikes while they're riding. That being said, let say I don't have a cyclocomputer, I'm going on a descend (like the guy who started this post) and I happen to be traveling over the speed limit. Can one fight a speeding citation in court stating there was no way to know how fast I was going, therefore, I shouldn't be issued a citation for speeding?