All cyclists love a healthy chunk of data, and a decent GPS unit is the easiest way to get a hit of those addictive numbers.
For this week's edition of BikeRadarBargains we've pulled together the best bargains on Garmin GPS units from around the web. Keep track of your miles as they rack up this summer.
Garmin Edge 25 —
The diminutive Edge 25 is one of our favourite GPS units on the market. It packs in much of the tech featured on units many times its size while taking barely any space on your bars. The perfect set and forget unit to just go out riding.
Garmin Edge 520 with HRM and cadence —
The Garmin Edge 520 is perfect for performance minded riders who want to keep track of all their data during training. We'd recommend going for a bundle that includes a heart-rate strap and cadence monitor.
Featuring live tracking, Di2 integration, smartphone alerts and connectivity with perhaps more than you'll ever need, the 520 is our favourite mid-range GPS.
Garmin Edge 820 — £
The Edge 820 looks very similar to the Edge 520. However it adds some additional navigation functionality that lets the GPS do on-the-fly route planning. That's handy if you like to go exploring during your rides or have a tendency to get lost.
Garmin Edge 1000 —
While it might have been replaced by the Edge 1030, it's hard to overlook the venerable, once range-topping Edge 1000.
Our very own Ben Delaney described the unit as the "definitive GPS training and touring computer" and it still holds its own with the very best out there today.
Garmin Edge 1030 —
For the ultimate GPS device for training and touring this is it. Garmin's top-end unit has full-featured rich data combined with robust navigation for any eventuality. It doesn't come cheap, but it's the GPS that has it all.
This article was updated May 2018.