Crank length may well be the most important (and most expensive) bike fit adjustment. It also requires a bit of explaining – that's where this video comes in.
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Many cyclists, ourselves included, choose crank length really quite arbitrarily. That is, we haven't really switch crank lengths recently, and, we have probably continued to use the same crank length for a decade or more. This is partly out of fear of any injuries that might come about from making such a big change. But, it's also about more than self-preservation, because solid evidence about what crank length you should change to is difficult to come by.

That doesn't mean that you shouldn't change cranks, though. Plus, the chances are that the cranks that came with your bike might not be *quite* right for you...

Let us know your thoughts on crank length down in the comments.

Watch more on GCN...
Does crank length really matter? ▶︎ http://gcn.eu/1olu6P3
How to change your cranks ▶︎ http://gcn.eu/1QnhRIf

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