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PowerTap C1 Chainrings

josh March 3, 2018
5.00 out of 5 based on 2 customer ratings
(2 customer reviews)


The C1 Chainrings offer dual-sided power, ANT+ & Bluetooth along with the accuracy PowerTap is known for

Clear selection


About the PowerTap C1 Chainrings

One of the hottest power meters out, the PowerTap C1 Chainrings are the only chainring-based power meter on the market, as other crank-based power meters measure power at the crank spider. Not having to replace your entire crank offers numerous benefits. In addition, the C1 Chainring power meter features dual-sided power measurement and transmit power data via ANT+ as well as Bluetooth SMART. The C1s are available in 53/39t, 52/36t and 50/36t chainring combinations for 5 bolt, 110 BCD cranks.

PowerTap C1 Chainrings Highlights

Left/Right Power Measurement

The PowerTap C1 Chainring power meter transmits power balance which allows to you determine your left vs. right leg power distribution. The C1 is the only dual-sided power meter at this price point.

ANT+ and Bluetooth SMART

The PowerTap transmits data via both the ANT+ and Bluetooth SMART wireless protocols. This makes the power meter compatible with your cycling computer or smartphone.

From a Reputable Company

With so many new companies entering the fray, it’s nice to know you’re buying from an established, reputable company known for producing top-level power meter products.

Only Chainring-Based Power Meter

The C1 Chainrings are the only chainring-based power meter on the market, as other crank-based power meters like measure power at the spider.

Easy to Use

When to comes to using the C1 Chainrings, it doesn’t get much easier. The power meter wakes up with a quick spin of the cranks and is ready to go!

C1 Chainring Power Meter Options

There are three available chainring options for the C1: 50/36t, 52/36t and 53/39t. Because of the nature of the C1 spider, it can’t take a ring smaller than a 36t. This is because the diameter on a 34t for example, is too small and would interfere with the pod on the C1.



The PowerTap C1 Chainrings will bolt directly onto almost any 5-bolt 110 BCD compact crank, including carbon cranks. Note that while PowerTap only supports their own chainrings with the C1, users have reported that the power meter works just fine using other 3rd party chainrings – so that decision is up to you.


In the Box

  • PowerTap C1 Chainrings
  • CR2032 battery
  • Quick Start Guide


NamePowerTap C1 Chainrings
Power Meter TypeCrank / Chainrings
Type: GaugeStrain
Number of strain gaugesNA
Weight150 grams (added weight)
Crank Arm LengthsNA
BCD Options110
Battery TypeCR2032
Battery Life200 hours
Left/Right Power MeasurementYes (estimated)
Communication ProtocolBluetooth and ANT+
Claimed Accuracy+/- 1.5%
Q FactorNA

2 reviews for PowerTap C1 Chainrings

  1. Rated 5 out of 5


    On the advice of a friend, I decided to give these a try. I really wanted a crank power meter and with these all I had to do is change out my chainrings. That made it more affordable and much easier. The C1 is great. Really easy to use and seems to be very accurate. This is my first power meter and there is no going back. I love the data it gives me.

    I went with Power Meter City because they had them in stock and shipped for free. Also, I didn’t know at the time but I got a 10% VIP code for future purposes – pretty cool! Buy these, you won’t regret it.

    • Power Meter City

      Power Meter City

      Richard, if we weren’t already sold on these…you’re review would get us there 🙂 Glad you like them. And be sure to come back and use that VIP code!

  2. Rated 5 out of 5


    This is my second C1 Ring actually. I have one on both of my road bikes. Solid power meter and I have found it to be very reliable. I had problems with a previous power meter so I think I have found something that works for me. For the price, it’s hard to beat. I like the left/right power balance and Bluetooth. Just make sure it’s compatible with your crank before buying (I learned this the hard way). Free international shipping from Power Meter City has huge. Thanks

    • Power Meter City

      Power Meter City

      Darren, glad you like your C1. Thank you for your business and please let us know if you have any questions or need any support.

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