Ever since someone figured out a way of putting a little box on your handlebars that told you how fast you were going, the bike computer has been everywhere.

It’s one of the very few ‘optional extras’ on a bike that almost everybody opts in on, and it’s pretty rare that you’ll see anyone – from the grizzled club veteran, to the newbie, even those mountain bikers – who doesn’t have some form of computer on their bike.

And even though the market might seem to have stalled over the last few years there’s still an awful lot of choice out there when it comes to what to put on your bars. We’ve had a look across the market and picked out six of the best, whether you’re one of the few who haven’t yet taken the plunge, or are maybe looking for an upgrade on your current unit…