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Quarq calibration

Old 11-17-11, 07:00 PM
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merlinextraligh
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Quarq calibration

Last night my Quarq was completely off. At times the power was way above perceived effort, other times it was way below, and a couple of half hearted sprint efforts produced personal record power.

Also it showed 0 power on several occassions while I was pedaling and it was still picking up cadence.

I'm using it with a Garmin 500 and I zero'd it a number of times both by back pedaling, and by calibrating on the Garmin. The calibration numbers went from -4000 something to minus 2000 to minus 1000.

Thought I'd give it another try tonight before I sent it back to Quarq, and power seemede much more in line with perceived effort. The offset numbers were also in a tigher range, from -37 at the beginning to 172 at the end.

I have a new battery, checked connections, and the chainring bolts are tight. Any ideas on what's going on?

I've emailed Quarq, and I'm sure they'll respond quickly, just wondered if anyone else had a similar experience.
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Old 11-17-11, 07:05 PM
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I did when I first got mine.
Even though it zero'd correctly on a number of occasions, Quarq had me send it back to them.

It has worked fine ever since, no hick-ups at all.
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Old 11-17-11, 07:37 PM
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I had a similar experience with inaccurate power and calibration problems that included drifting initial calibration. I sent it back and they repaired it or sent me another one. When I calibrate my Quarq at the start of a session, I check it again at the end. There is not much change. The one I sent back would change by 100 point or more.
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Old 11-18-11, 08:12 AM
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Lots of people reporting problems with Quarq and Garmins (myself included). Happening just at the time Garmin launch a power meter of their own. If one were inclined to conspiracy theories.....
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Old 11-18-11, 10:44 AM
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Originally Posted by merlinextraligh View Post
Last night my Quarq was completely off. At times the power was way above perceived effort, other times it was way below, and a couple of half hearted sprint efforts produced personal record power.

Also it showed 0 power on several occassions while I was pedaling and it was still picking up cadence.

I'm using it with a Garmin 500 and I zero'd it a number of times both by back pedaling, and by calibrating on the Garmin. The calibration numbers went from -4000 something to minus 2000 to minus 1000.

Thought I'd give it another try tonight before I sent it back to Quarq, and power seemede much more in line with perceived effort. The offset numbers were also in a tigher range, from -37 at the beginning to 172 at the end.

I have a new battery, checked connections, and the chainring bolts are tight. Any ideas on what's going on?

I've emailed Quarq, and I'm sure they'll respond quickly, just wondered if anyone else had a similar experience.
Several posts on the Quarq Forum regarding calibration issues, specifically with the 500. Check them out.... https://www.quarq.com/forum/quarq-discussion/
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Old 11-18-11, 12:30 PM
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Hida Yanra
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Hermes - slight thread jack, do you use your Quarq on the track?
The reason I'm recalibrating mine pretty frequently is because I'm starting to use it on my track bike. ... and all the stuff that entails.
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Old 11-18-11, 12:31 PM
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No. I use it on my TT bike.
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Old 11-18-11, 01:57 PM
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HY, How did you adapt your Quarq to the track?
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Old 11-18-11, 04:19 PM
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chainline spacing - I haven't ridden it yet, but I had it set on there the other night.
I emailed Quarq, and they said that it should work just fine.
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Old 12-06-11, 08:26 PM
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Turned out it was farked. Few months out of warranty. Got a new spider and electronic unit for $500. The crank itself was delaminating, and that was covered under warranty. So everything, except chainrings, new for $500.
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Old 12-06-11, 08:43 PM
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Good deal.
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Old 12-06-11, 08:56 PM
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Originally Posted by merlinextraligh View Post
Turned out it was farked. Few months out of warranty. Got a new spider and electronic unit for $500. The crank itself was delaminating, and that was covered under warranty. So everything, except chainrings, new for $500.
was your unit new or used when you purchased it?
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Old 12-07-11, 08:04 AM
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Originally Posted by echappist View Post
was your unit new or used when you purchased it?
I bought it new from Quarq.
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