Quarq Dfour with Rotor QXL rings

Discuss light weight issues concerning road bikes & parts.
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TroyG
Posts: 19
Joined: Wed Jun 18, 2014 7:58 pm

by TroyG

Anyone running a Quarq Dfour power meter with Rotor QXL rings? Any fitment issues getting the QXL rings on?

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CycloTron
Posts: 30
Joined: Fri Jul 28, 2017 12:34 am

by CycloTron

According to Rotor's information, the QXL rings are compatible with Shimano 4-arm 110BCD cranks, so should be ok with the DFour.

TobinHatesYou
Posts: 1212
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

Quarq has not yet released its non-round chainring compatible firmware for the DZero or DFour, so any measurement will be inflated by a few percent. As far as I'm aware, they just need to increase the polling rate to account for small changes in angular velocity.

Jhomewood
Posts: 122
Joined: Fri Feb 22, 2013 8:30 am

by Jhomewood

TobinHatesYou wrote:Quarq has not yet released its non-round chainring compatible firmware for the DZero or DFour, so any measurement will be inflated by a few percent. As far as I'm aware, they just need to increase the polling rate to account for small changes in angular velocity.

is it in the works?

TobinHatesYou
Posts: 1212
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

Jhomewood wrote:is it in the works?


It is, but I haven't heard a date or even a timeframe.

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