Chinertown
Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: FHS on February 23, 2021, 07:34:19 PM
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Took me awhile to sort out all the issues with my TanTan TT-21 build. All due to my lack of build experience, not anything noteworthy wrong with the frame.
I'm thinking about this next....
https://www.sigeyishop.com/product/zracesigeyi-rx-power-meter-crankset/
Everything I've read about the power meter has been mostly positive, positive enough for my use anyway. Does anybody have any experience with the crankset though? I'd be swapping out my Shimano 105 R7000 crankset and would be happy with performance that is close to the 105 anyway, with regard to stiffnes. I'd also have to switch out my Wheels MFG BB86 threaded pressfit, which I love, for a DUB BB92, which concerns me about compatibility. I welcome any thoughts.
Thanks!
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I think you'd be better off purchasing a left-sided Shimano based power meter, that way you don't have to worry about the BB, and you'll have an easier time servicing and/or reselling it. Moreover, you get a reliable Shimano crank, power meter aside. Sigeyi, Xcadey and Magene are said to be accurate and of good value. However it seems that Shimano cranks are in low supply, so you may have to wait a while for them to come back in stock (and back down in price!). This Ultegra PM used to be ~$200 6 months ago, now it's $300! https://www.aliexpress.com/item/32896718766.html
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I think you'd be better off purchasing a left-sided Shimano based power meter, that way you don't have to worry about the BB, and you'll have an easier time servicing and/or reselling it. Moreover, you get a reliable Shimano crank, power meter aside. Sigeyi, Xcadey and Magene are said to be accurate and of good value. However it seems that Shimano cranks are in low supply, so you may have to wait a while for them to come back in stock (and back down in price!). This Ultegra PM used to be ~$200 6 months ago, now it's $300! https://www.aliexpress.com/item/32896718766.html
I definitely considered a single-sided, single crank power meter. I'm asking specifically about the Sigeyi+Zrace because it is a dual sided full crankset for not much more than a single crank. But, with getting into the Chinese carbon frame market in the first place, things don't always run smoothly. I know I won't be satisfied with a single-sided PM in the long run, and now that I'm really enjoying riding my bike without a lot of the fuss, I can wait for a either a good deal on a dual-sided, or just save up for one of the more expensive ones. Just trying to figure out how much fuss the Sigeyi + Zrace might add and it it's really a good deal.
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Hi,
I think we are literally building almost the same bike!
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Hi,
I think we are literally building almost the same bike!
Seems like a popular choice these days!
What do you think about the powermeter/crankset?
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I think the only thing to worry about is the Zrace crankset. But if it was crap sigeyi wouldn't want to co-operate with them because it wouldn't be good for their reputation
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Agreed, I'm so ready to pull the trigger, but luckily they are currently out of stock for 50/36 chainsets, giving me some time to try to get some feedback on the Zrace.
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I'm running my
xcadey Edit: sigeyi spider power meter on Shimano XT m8100 cranks with a 1x 104bcd dekas ring. I'm only using this setup until my Magene P325 CS arrives. It Works great, fantastic PM. App is good, power reading are as expected, smooth and responsive. I don't think this is what you are looking for but it's a good brand imo. I ordered directly from their website.
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I'm running my xcadey spider power meter on Shimano XT m8100 cranks with a 1x 104bcd dekas ring. I'm only using this setup until my Magene P325 CS arrives ( Works great, fantastic PM. App is good, power reading are as expected, smooth and responsive. I don't think this is what you are looking for but it's a good brand imo. I ordered directly from their website.
Thank you for the input! Is that an xcadey, or a Sigeyi? I actually have thought about the Magene full crankset offering as well. At this point, I think I'm backing off the Zrace crankset. I really like their website and they ansewer emails really quickly. They say shipping and delivery will be reasonably fast if they have stock. I just think I'm leaning toward keeping my Shimano 24mm set-up.
Thanks again!
Fred
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It's a sigeyi! Sorry I made a mistake!
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There is a great thread on weightweenies regarding the new dual sided Magene PM. The thread compares power readings with other PMs and compares shifting performance aswell. Long story short: dodgy numbers compared to assiomas and smart trainer. Dodgy shifting aswell. For clarity, I personally own a left sided Magene. I wanted this PM to be a big success. I was an early backer of the Kickstarter but pulled out after the GPlama video.
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There is a great thread on weightweenies regarding the new dual sided Magene PM. The thread compares power readings with other PMs and compares shifting performance aswell. Long story short: dodgy numbers compared to assiomas and smart trainer. Dodgy shifting aswell. For clarity, I personally own a left sided Magene. I wanted this PM to be a big success. I was an early backer of the Kickstarter but pulled out after the GPlama video.
I've just read it...... pray for me ahahaha To be honest they money i paid for it, I figured that even if I don't like it, I can sell it for at most a modest loss. For sure they won't continue selling them for <300 usd IMO, so I thought it was worth the risk. I'll do a full review here when I recieve it.
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They are starting to pop up on Ali for £300 ($400) so you should definitely get your money back at least.
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I'm going to bail on this set-up. Seems like Sigeyi keeps releasing firmware updates that introduce more issues than they fix. I'm not keen on switching to DUB in the first place. Looking at the Xcadey spider/crank set-up that is capable of using the 24mm BB86, but the company has been completely unresponsive.
I'm may do the single crank after all, or save my pennies for a major brand spider/crank.
Thanks everybody!
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(http://)
...Seems like Sigeyi keeps releasing firmware updates that introduce more issues than they fix...
Where did you see this?
Didn't have any issue before.
And the update few days ago, didn't bring any issue either.
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(http://)
Where did you see this?
Didn't have any issue before.
And the update few days ago, didn't bring any issue either.
I second this. IMO the thing works perfectly in the real world. :)
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Browsing through various forums, testing from Dplama. Granted, I think I stopped looking at anything past late '20, I think August. Sounds like they sorted things out since then but there is only so much Googling I'm gonna do.
I'm new to this and I'm definitely not trying to throw shade on Sigeyi.
I definitely appreciate your input Irishrider, but it sounds like you're moving over to Magene. They make plenty of straight swap hardware and I'm looking forward to hering about Magene. Would love to hear more of your positive experiences carbonazza, your set-up, etc.
Honestly, I was hoping to hear more about the Zrace + Sigeyi because it's one BB change away from a straight swap, but that's a big change that may or may not be worth the powermeter upgrade no matter how well the powermeter works, but, as I said, all input is welcome!
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While on the topic or power meters and cranks. I have been thinking of going to spider based power. Any good Chinese options for 24mm cranks? I'm running bb86 so I don't want to switch to 30mm cranks. Been trying to hunt down a skypivot crankset without any luck. It seems like rotor is the only option but fairly expensive for what it is.
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While on the topic or power meters and cranks. I have been thinking of going to spider based power. Any good Chinese options for 24mm cranks? I'm running bb86 so I don't want to switch to 30mm cranks. Been trying to hunt down a skypivot crankset without any luck. It seems like rotor is the only option but fairly expensive for what it is.
https://xcadey.com/product/xpower-power-meter-crank/
Xcadey was a little slow to get back to me, but once they did, they were pretty responsive. I was able to confirm that this spider/crank combo fits a BB86 24mm spindle. They even updated the page so that you can now choose your crank length.
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Very interesting but still not much into on the crank. Any idea on the weight of that set up on Shimano chainrings? Looks beautiful.
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Nope, just the information they have on the page, which looks pretty new. Looks like a newish product for them.
The website does make it look really good. I'd go ahead and reach out to them with any questions you might have, I just suggest using the messenger/chat option.
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I've just read it...... pray for me ahahaha To be honest they money i paid for it, I figured that even if I don't like it, I can sell it for at most a modest loss. For sure they won't continue selling them for <300 usd IMO, so I thought it was worth the risk. I'll do a full review here when I recieve it.
Looks like the cost of these units has gone up. If it is any comfort, looks like they resolved the pedal angle and crank flex issues (also, for what it is worth they flipped the logo to the right orientation...that's like 20 watts right there!)
I imagine some of the other issues may be resolved or mitigated with firmware updates (hopefully)
Look up the reviews by Charles Ouimet and Ronald Kuba. Also balanced and noticing some of the issues that Shane noticed.
https://youtu.be/dEs5DKpK5Vw
https://youtu.be/XV6XHiJi9vk
Based on those reviews, I think it is important to consider your level of experience. If you are like me, where you are above average but lower than amateur, the P325CS should be fine.
If you are amateur level or competitive, it may not be for you.
I bought these as well and have them in hand, but haven't tested them out yet (kinda need the rest of the bike first, and don't want to install them on my beater)
I noticed the weight is 30g heavier than advertised. I have the standard 53-39, which may be the reason why it is heavier. I did get slightly shorter cranks at 170mm. It could also just be manifacring variance. But one can hope it is because they added a little material back to stiffen it up a bit...
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Haha, I love Youtubers. Great stuff and super informative.
FWIW, I ended up going with a Quarq Dfour DUB. Had to fork over some funds for a DUB crankset, and ended up keeping my Shimano chainrings, but In The Know Cycling has a code that saved 10%, free shipping from a local vendor, and a delivery time that had the set-up installed and working on my bike 3 days after I ordered it. No installation, fitment, or functioning issues. Would have loved to go with a more budget friendly option, but considering everything, I think it was a wash.