Key Product Details
Compatibility:
This Sigeyi fits SRAM direct mount 3-bolt cranksets. Regarding chainrings, it requires a 104 BCD 4-bolt MTB chainring (which is different than the direct mount chainrings found on many SRAM MTB cranksets). If you don’t already have a 104 BCD 4-bolt chainring, we offer several to choose from. See Compatibility tab for more information.
Power Measurement:
The Sigeyi power meter measures power at the spider and is therefore able to measure power from both legs.
Key Features:
Dual-leg power measurement, accurate to +/- 1.0%, 300 hours of battery life, rechargeable battery, very lightweight, left/right power balance, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration). See Specs tab for more information.
Advice From Our Staff:
The Sigeyi is a great way to add power to SRAM 3-bolt MTB cranksets. It measures power from both legs, is accurate and affordable. In addition, since it bolts on to your existing crankset, there is no need to buy new cranks or change bottom brackets. It is also lightweight which makes it a great option for cyclists looking to minimize added weight.
Options For This Power Meter
Chainline and BCD: This power meter is available in the following versions:
- 1X Boost | 104 BCD
- 1X Standard | 104 BCD
The 1X Boost version is most common and is used on bikes that currently have 3 mm offset direct mount chainrings. These bikes usually feature 52 mm chainlines and 148 mm rear hubs.
Other Versions to Consider
Sigeyi SRAM MTB 8-Bolt: We also have the Sigeyi AXO SRAM 8-Bolt MTB Power Meter which fits SRAM 8-bolt MTB cranksets. Please contact us if you are not sure which version you need.
D Hughes (verified owner) –
Great product easy to connect and just ride. Paired with a wahoo bolt v1 easily. I bought it with a wolf tooth chainring from PMC and they installed and torqued it before they shipped it. (Thanks guys) very happy with purchase I just wish I bought it sooner, haha
Power Meter City –
Thanks so much for the great feedback! We’re really glad to hear everything paired up smoothly and that you’re enjoying the ride. Happy to have installed the Wolf Tooth chainring and gotten it all torqued up for you—it’s always our goal to make things as plug-and-play as possible. Appreciate your support, and we’re stoked you’re loving the setup (even if you wish you’d grabbed it sooner, haha). Enjoy the ride!
Biker #2 (verified owner) –
I have some Garmin power peddles on a my XC bike for training and tracking statistics etc, found power measuring to be really fun and important metric, so decided I’d also like to track my power on the Enduro bike too. The Sigeyi here lets me run flat peddles while also tracking power, even on the 37# big pig, sweet!! I do wish we could use smaller chainrings, which I realize is partially limited by 104 BCD but still a 28t or a 30t oval would be nice, oh well you cant get everything. Paired right to my watch in 5 seconds since I dont want to run a computer on the big bike, peace of cake. I actually just ordered another one for my single speed bike since doing some math in my head it seems like this spider power meter + lightweight clipless peddles (minus the weight of a direct mount chain ring and plus the weight of a 104bcd chainring and bolts) is actually lighter than Garmin power peddles setup…
Power Meter City –
Thanks for the awesome and detailed review! It’s great to hear how much you’re enjoying tracking power across your different bikes—and that the Sigeyi spider lets you keep things versatile with flat pedals on your Enduro setup. We hear you on the smaller chainring options with 104 BCD—it’s a trade-off, but we agree it would be great to have more flexibility. Super cool that setup with your watch was a breeze and that you’re even picking one up for your single speed! Appreciate you sharing your experience, and happy riding!
daveanderson (verified owner) –
Great value, easy to install, and amazing support from Power Meter City! When I first installed this, the chainline was wrong (too far inboard). A quick call to Power Meter City, and Dave methodically walked me through troubleshooting my setup. It turns out I had my SRAM bottom bracket spacers reversed (drive vs. non-drive side), which messed up my chainline. Totally my fault. Amazing knowledge and support from Power Meter City saved my day.
I’ve got one ride on the Sigeyi – it’s worked flawlessly so far. Paired perfectly with my Wahoo head unit. What an amazing value and easy way to get dual sided power.
Power Meter City –
Thanks so much for the awesome review! We’re glad to hear you found great value in the Sigeyi and that it’s paired perfectly with your Wahoo. Big shoutout to Dave for helping sort out the chainline issue—glad we could help get you back on track quickly! We’re always here to support you, and it’s great to know everything’s working flawlessly now. Enjoy the rides and all that dual-sided power!
BruceB (verified owner) –
Short Term 5-Star review. So far I have only two rides and really like the product. I can speak on the installation process physically on my bike and getting everything connected and talking via my head unit. The installation was simple, partly because Praxis is a simple system (it took longer to clean everything up once taken apart than it did to add the power meter and re-install everything) and partly because Power Meter City pre-installed and spec torqued my new 104 bcd chainring. Sigeyi power meter was easy to get paired to my head unit usint ANT+ Along with a heart rate moniter, head unit and power meter the stuff has all worked flawlessly. I have been playing with HR Zone Training. I think that can be decent gauging your ride through HR but once you start accounting for head wind, tail wind, cross wind or no wind…playing the HR game along with perceived effort, it just makes sense that accurate watts will rule as the benchmark of performance and performance gains through puttin in work? The other thing that was a pleasant surprise is that the Sigeyi Power Meter and Chainring were only a few grams heavier than my One Up Switch Carrier and chainring that my power meter replaced. I think it was 76 grams and the Sigeyi weighed 85 grams? So far, so good, if it works like with for a longer period of time and has no issues with inclement weather, it will be well worth the money. The staff a Power Meter City is beyond good. They are knowledgeable enough to explain what needs to happen simply and are happy to spend a few minutes helping out!
Power Meter City –
Hi Bruce! Thank you for the detailed feedback! We’re so glad to hear everything went smoothly with the installation and pairing, and that the Sigeyi power meter is working well for you. It’s great that you’re seeing the value in power as a true performance benchmark. We’re also happy to hear that our team could help make the process easy and clear! We’re excited to be part of your cycling journey and appreciate your trust in us. If you need anything down the road, don’t hesitate to reach out! Safe rides!
chris (verified owner) –
i’ve had this one for about a year and it’s worked perfectly well over the time. Connected to an eagle Xo1 3 bolt and I’ve charged it 2-3 times over the year and I ride ~1-3x / week.
Great device.
Power Meter City –
Hi Chris. Thank you for the great review! We’re thrilled to hear that the power meter has performed perfectly for you over the past year. It’s fantastic that you’ve only had to charge it a few times despite your regular rides. Please let us know if there is anything else we can help you with!
Lou (verified owner) –
Looks very nice and high quality on close inspection. It immediately connected to the Sigeyi Android app. It installed on my SRAM 3 bolt mtb crank perfectly. Power compares to within a few Watts to my Assioma Duo pedals. I don’t see how it could be improved upon or why I’d pay more for some other brand. I put the included black sticker on it to keep it stealth.
Power Meter City –
Nice ride, Lou! We’re glad you’re enjoying the power meter and the trails. We’re happy to help if you need anything else!
Lauren (verified owner) –
Purchased this power meter to replace my old one that was failing! I have used it on several long rides and races in all conditions and so far, it has worked flawlessly! I love how it isn’t super expensive and also works as advertised!
Power Meter City –
Thanks for the review, Lauren. We’re glad you’re enjoying your power meter and are happy to help if you need anything else. Enjoy the ride!
Scott Hammontree –
Only rode it a couple of times but it seems very good. Install was very easy. Power output to Garmin Computer is as expected. Connected very easily. Unless it proves unreliable, I would say it is a great power meter. Get One!
Power Meter City –
Awesome! Thank you so much, Scott! We hope you will continue to enjoy your new power meter. Ride safe!
Nick (verified owner) –
I liked the first one so much I got a second for my other mountain bike. Really nice to have to pace myself on long climbs as well as all the other logging data I get from this.
Power Meter City –
Thank you for taking the time to share your positive experience with us, Nick! Good luck on your future rides!
Nick (verified owner) –
Really happy with this power meter for my status 160, while not popular with most mtb guys I like to match my training on the peloton when I can’t get out for a ride. Prior to having a power meter I just relied on Strava estimated data, after riding with this I quickly realized why it’s so hard to get the same results training on my Peloton.
Super awesome experience buying from these guys. I’m a bit of a noob and ordered the wrong combination of parts, rather than just shipping what I ordered I got a phone call to ensure I would receive compatible parts. I really appreciate the extra effort put into making sure I got what I needed to start logging!
Power Meter City –
Glad you are enjoying your new Sigeyi’s, Nick! Thank you for taking the time to share your positive experience with us!
parker goodwin (verified owner) –
I recently added the Sigeyi SRAM MTB Power Meter to my single-speed mountain bike, and the results have been nothing short of amazing. This power meter has completely transformed my riding experience. Here’s why I believe it deserves a solid 5-star rating:
Precision and Accuracy: The Sigeyi power meter provides incredibly accurate power readings, making it an essential tool for anyone serious about their training. Whether you’re a professional racer or a dedicated enthusiast, the precision of this device will help you fine-tune your performance.
Seamless Integration: Installing the power meter on my SRAM-equipped bike was a breeze. It seamlessly integrates with my drivetrain, and it’s practically invisible once installed. It’s as if it was designed to be part of the bike from the start.
Battery Life: I’ve been amazed at how long the battery lasts on the Sigeyi power meter. I rarely have to worry about recharging it, and the low-power mode is a fantastic feature for extending the life even further.
Reliability: In all my rides, the power meter has been consistent and reliable. It has endured rough trails, inclement weather, and all the rigors of mountain biking without missing a beat. It’s clear that this is a well-engineered, durable product.
Data Analysis: The ability to track and analyze my power output has been a game-changer for my training. I can now monitor my progress, identify strengths and weaknesses, and adjust my training accordingly. This power meter has helped me become a smarter, more efficient rider.
Excellent Customer Support: Sigeyi’s customer support team has been incredibly responsive and helpful, ensuring that any questions or issues I had were promptly addressed.
In summary, the Sigeyi SRAM MTB Power Meter is a top-notch product that has taken my single-speed mountain biking to a whole new level. It offers precision, durability, and seamless integration, making it a must-have for serious riders who want to improve their performance. I couldn’t be happier with my purchase, and I highly recommend it to anyone looking to elevate their cycling experience. Five stars all the way! ⭐⭐⭐⭐⭐
Power Meter City –
We’re overjoyed to read your positive review, Parker! Knowing that our new Sigeyi power meters made a positive impact makes our day! Thank you for choosing Power Meter City! Ride safe!
Jim Messer (verified owner) –
I’ve wanted to add a power meter to my training and finally decided to. I researched Sram’s solution- and I would have had to buy a new crank. That was way out of range. More research brought me to powermetercity and finally, to Sigeyi AXO. It has great reviews, is an amazing price, and appears to be a great meter.
I ordered a chain ring and ring bolts with my PM. PMC installed them both. I installed it on my YT Izzo and it paired instantly to my Edge 840. I did a number of rides and the readings are super clean.
This is a great value and you’ve found a great place to order it from.
Power Meter City –
You came into the right place, Jim! Thank you for this amazing review! (Our very first one!) We hope you will continue your new Sigeyi power meter and we are here if there is anything else we can do!