4iiii has launched the dual-sided power meter that Team Etixx – Quick Step has been using this season, and which the Canadian company claims is the lightest dual-side power meter in the world – it adds just 25g to a crankset according to the company’s claims.
The company is offering two ways to buy the power meter. You can buy a Dura-Ace 9000 crankset for $1,499 with the power meter installed or, alternatively, if you already have that crankset, you can send it off to the company to have the power meter fitted for $749. UK prices haven’t been finalised yet.

Using strain gauges on both arms, the Precision Pro can record left and right leg power independently and uses ANT+ to send the data to a compatible computer head unit. The heart of the power meter is housed inside a small plastic pod bonded to the crank arm, and also contains the coin cell battery.
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The Precision Pro joins the first power meter released by the company, the Precision 2.0, which is very much like a Stages power meter with a single-sided power meter, with a small pod attached to the inside face of the crank arm.
The Etixx – Quick Step team have been putting the new power meter through its paces this season, including at the Tour de France, and by all accounts, they seemed pleased with the performance.

Koen Pelgrim, Head Trainer for Etixx – Quick-Step, says: “4iiii’s Precision Pro power meter gives us valuable information about our riders’ shape and condition. It measures both legs independently, while only adding a few extra grams to the bike.”
UK distribution is via 4iiiiuk.com – we’ll confirm UK prices as soon as we have then, and availability is expected this autumn.

5 thoughts on “4iiii launches ‘world’s lightest’ dual-side power meter”
Steep up-charge
A factory install if you send in your own crankset is $750, but a pre-built Dura-Ace crankset is $1500? That seems awfully steep considering you can get a brand new loose crankset around €400 if you shop around. While they probably don’t sell enough to qualify for Shimano volume discounts certainly they’re not paying full retail for the cranksets…
They might like to try and
They might like to try and deliver the single sided ones that were due 1/July – now slipped to 1/November instead of announcing new vaporware.
Man of Lard wrote:
I’ve got a single sided Ultegra that I just bought in a shop a couple of months ago. Didn’t realise they were still not shipping them out to pre-orders.
…and if your budget is
…and if your budget is ultegra….look elsewhere (pauper)????
What happens if you need to
What happens if you need to change a chain ring?