Product Review: Starlane Stealth GPS-3X, (£314)

What’s good about the Starlane Stealth GPS-3X?

Having a lap timer with a built-in GPS receiver means there’s no need to have your own infra red beacon on the pit wall prior to your track session. The Stealth is extremely well built, waterproof, ideally sized, and boasts impressive functionality, like a 99-lap memory which is downloadable to your PC via a USB memory stick, automatic start/finish line detection, best lap display and ideal lap. There’s also the option to use it as a datalogger via the DigiRace analysis software (£90 extra).

And what’s not?

This lap timer looks good on paper, but it’s too unreliable. The receiver locks onto a GPS signal quickly, but seems to drop out intermittently, leading to inconsistent timings. When it works it’s accurate to within a thousandth of a second to my racing transponder time, but it only reliably records three out of every five laps. It also eats 9v batteries, a pair every race meeting (but it can be plumbed into the bike’s 12v system).

Time tested

Four months/five race meetings


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Value rating