Pics to follow...

556 grams (30 grams is all that gets aded to their 3d+ cranks)

Dual Power: 8 strain guages (4 per arm)

Proper power measuring and pedal stroke detail independant for right and left side.

Standard ANT+

300 hours from a standard / widely available battery (no tools needed for change)

universal 30MM axel should mate with a lot of different BB's.

Available early 2013 (est)

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charles@pezcyclingnews.com

How much could their working with Quarq and SRM have helped develop this?

Genuinely did not see this one coming.

RRP?

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Baum Ristretto, Baum Mondrian Corretto & the '89 Merckx! | "If you could eat it in one sitting, hold your line." | twitter.com/Tinea_Pedis

Estimating 1700 Euro +/-

They need to understand final production cost but the estimate should be pretty close. These guys understand machining and have hardware quotes. I would gues they'll need to build a few hundred before a full understanding of the hand time involved.

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charles@pezcyclingnews.com

They had prototypes/mock-ups last year iirc.

The tech here is crank arm based and not like the spider / spider-BB based gauges for quark and SRM. They're all measuring deflection but from different places.

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charles@pezcyclingnews.com

What's the Q-factor? 147mm as for the 3D+ cranks without powermeter?

Is is compatible with Trek's BB92?

Crank arm based power measurement should mean that it work with any chainrings, round or oval, any size, with no recalibration required. That would be awesome.

No. Treks's BB92 is the only crank standard it doesn't work with. But BSA, Ital, BB30, BB30 Pressfit, BB386Evo will work with the right BB.

If need be, it can be calibrated by the user in 5 sec. But under normal circumstances, it shouldn't be necessary.

All unicorns agree... But it would be tough given all chainrings are not made to a single standard

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charles@pezcyclingnews.com

Also samples at 500Hz so not mislead by non-round rings etc and potential to analyse standing starts, sprint power and pedal stroke very well. Very very strong specs at a reasonable price.... let's hope they can deliver it!

Bit optimistic to expect it to stay accurate through ring and pedal swaps.....

I know this will divide opinion, but will they look a little different to the present Rotor arms?

I don't mind them, depending on the bike. But some of my mates find them hideous.

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Baum Ristretto, Baum Mondrian Corretto & the '89 Merckx! | "If you could eat it in one sitting, hold your line." | twitter.com/Tinea_Pedis

Given they are making these in conjunction with AIP who sell there model for 3500 Euro direct, I'd be surprised Rotor undercutting them by such a margin...

http://www.aip-mep.com/

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http://climbinglama.blogspot.com.au

@TP : No, in short.

http://www.bikeradar.com/news/article/n ... 012-35097/

The cranks in the Bikeradar pic are still pre-production models. The final version will have a little more subdued graphics.

The projected price is 1700 Euro.