They are actually labeled with brand "ace" and the part number a1611ke03.
I want to test them out (probably on my rollers to start), but I need a square taper JIS bottom bracket first.
Anyone have experience with these cranks? Any idea about spindle length I should get?
My bike has 68mm shell.
Yes, see what you mean now when asking what length. Never thought of it before, because I had always bought Campag Chorus (which I see now comes in 102mm). Maybe you just get one that suits what you want in terms of Q factor.
Sorry I'm not of much help. But I also came to comment that those cranks look interesting reminding me of Tune (Bigfoot?) and good weight. Heard that the Tunes were flexy, but what would I know. Certainly interested to see how you find/compare with your existing cranks, for sure.
Here is the link that I bought from. However, I see this being sold by others- even with anodized spiders. For whatever reason, many of the listings include "Brompton" in the title. Search for Brompton crankset and you will find a bunch of listings.
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But they do look super cool. Don't race them but it'd be a nice for a club ride conversation.
From what I can tell, these are probably 50-60 grams lighter than the Bigfoot of comparable dimensions.
Both cranks are machined from 7075. So, where is the weight coming from?
Here's a photo of the back of the Tunes:
And here are the "Ace" cranks:
It came off a DeBernardi track bike. Very slight roughness if memory serves, but clean threads.
I only ask you reimburse me via paypal for the mailing cost.
Probably three or four bucks regular mail. It'd get to you relatively quickly, since I live near Pasadena, CA.
Let me check to see if 103 will be enough in a double chainring setup with these and I might take you up on that offer. Eventually I would like to get something light with a titanium spindle, but I think it is best to try out the spindle length first before I invest in anything.
At my weight (58 kg) they were fine. Bigger guys that aren't spinners might beware. Not sure what spindle length will be needed, I think i used 109's with mine that were originally mtb cranks (done that way to get the 110 bcd, q factor be damned).
The milling pattern looks very intentional and "engineered" on the bigfoot. Since it is Tune, I am sure they chose the material distribution very carefully for stiffness and strength. The ace cranks look like someone took a melon baller to the back of them.
Another modern crank for comparison is the Extralite QRC 2 designed using FEA. The previous model (ebones QRC) is shown below. Extralite mills a kind of spine down the middle of the back of the arm. I think this is what they call the "stress split design". The spider design is very similar in the Ace, except extralite builds one of the chainring bolt holes into the crank arm!
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