Not very, considering cassettes might last 5-10k miles. The chain is a much better location.

Not to mention people change cassettes based on terrain.

nickwhite wrote:

Time to put the power meter into the cassette! How cool would that be?

I think that G-cog was working on that a while back. I just went to their website, and all i see are BMX cogs
http://www.g-cog.com/G-Cog.htm

C1 update from DCR: https://www.dcrainmaker.com/...sight-strydlive.html

Does anybody know if the C1 chainrings fit on a Felt IA10 with a stock Vision TriMax Pro Tri BB30 crank?

Yes, it should fit. Make sure it's the alloy version, year 2015 or earlier. You might need some 30mm spacers to kick out the unit on the drive side. It hit my P3 and R3 frames unless I did this.

Awesome thanks.

My wife and I have ride a B2 that has the Vision TriMax crank, yes it fits. Bought 2 of the C1 rings and very happy with them; well worth the $350 IMO. Ant+, Bluetooth, and dual side #s for that price is hard to beat. My road bike is a 2013 Tarmac with FSA light crank and I believe it will fit as well. If it is 110 BCD and 5 arm crank, it should work.

I've had the C1 Chainring since 2015 and ride a P4 with 155 cranks. I absolutely love the Power Meter. Gives me dual side and easy to calibrate, change the battery, etc.

Still for sale, and Powertap permanently lowered the price to $350 (per DCrainmaker and powertap.com)

They had a lot of warranty issues on the C1 and I think this had something to do with it.
To their credit, they handled all those issues (at least the ones I dealt with) very well.

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Jonathan Blyer,
ACME Bicycle Co., Brooklyn, NY

Yes, indeed. Water could penetrate the seal. Also, PowerTap had mentioned that the lack of compatible cranksets played a role. Also agree about their support. Everyone knows their support rocks :)

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Power Meter City
Your Power Meter Specialists

could or still can? Have they fixed the issue?