Currently fitted with older Sram Red powerglide rings (53-39) and I’d like to chuck a SRAM 53 TT dinner plate on there…
Do i need to recalibrate??
per the website, all things otherwise remaining the same, the website says no.
on the other hand, for piece of mind and being in the off season last year, I sent mine back to them to have it recalibrated. its free of charge, minus shipping fees.
-jack
actually yes you do : please see the qalvin FAQ it would tell u how to adjust the slope
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Actually I looked it up on the Quarq website, and this is taken directly from the website…
“If you are replacing worn rings with a new pair of the same model, no recalibration is necessary. If you are swapping from Road to TT or Road to CX rings, or Brand X to Brand Y, or converting to a single speed with or without a bash guard, recalibration is highly recommended. You can do this using an accurately measured weight and Qalvin’s Calibrate Slope routine. If you do not have access to Qalvin, you can return the power meter to Quarq for inspection and factory calibration.”
So, the answer is yes.
Thanks. I havent fitted them yet. Will organise to send them off! cheers
yes but he is changing powerglide to tt thats over 5 pct difference
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