need advice for carbon crank setup
12-08-21, 07:00 PM
#1
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need advice for carbon crank setup
My current setup
Crankset: Shimano Alfine Hollowtech II , 170mm crank arm length, 130BCD, Single Speed 48T with integrated chain guard
Bottom Bracket: Shimano Ultegra Press Fit sealed bearing unit BB92
I would like to keep the bottom bracket and just upgrade the crank arms & spider to carbon fiber for further weight reduction.
THM is very good but the price is unaffordable.
Any recommendation?
Crankset: Shimano Alfine Hollowtech II , 170mm crank arm length, 130BCD, Single Speed 48T with integrated chain guard
Bottom Bracket: Shimano Ultegra Press Fit sealed bearing unit BB92
I would like to keep the bottom bracket and just upgrade the crank arms & spider to carbon fiber for further weight reduction.
THM is very good but the price is unaffordable.
Any recommendation?
Last edited by singlespeedfold; 12-13-21 at 02:28 AM. Reason: correction
12-09-21, 09:00 AM
#2
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My current setup
Crankset: Shimano Alfine Hollowtech II , 170mm crank arm length, 130BCD, Single Speed 48T with integrated chain guard
Bottom Bracket: Shimano Ultegra Press Fit sealed bearing unit BB86
I would like to keep the bottom bracket and just upgrade the crank arms & spider to carbon fiber for further weight reduction.
THM is very good but the price is unaffordable.
Any recommendation?
Crankset: Shimano Alfine Hollowtech II , 170mm crank arm length, 130BCD, Single Speed 48T with integrated chain guard
Bottom Bracket: Shimano Ultegra Press Fit sealed bearing unit BB86
I would like to keep the bottom bracket and just upgrade the crank arms & spider to carbon fiber for further weight reduction.
THM is very good but the price is unaffordable.
Any recommendation?
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12-09-21, 06:34 PM
#3
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I'm not a racer but I need to carry my bike up the staircase every working day so I'd like to keep the weight minimum.
12-09-21, 06:57 PM
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This is the general plan and pattern for weight training.
Not sure about options for the crankset but another swap of lighter wheel(s) could also be considered.
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12-09-21, 07:22 PM
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That's cool. It's just that most of the people I know who went to carbon cranks weren't all that fond of them after the fact. And yours are already pretty light comparatively speaking.
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12-09-21, 07:22 PM
#6
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already swapped a set of carbon wheels
12-09-21, 07:28 PM
#7
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Thanks for your advice. good quality carbon cranks are expensive too. I'm now considering some light aluminum alloy cranks which are very light too.
12-09-21, 07:43 PM
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Keep an eye on EBay, as well as your local Craigslist. Cranks pop up all the time.
But, you have to set a budget. $50? $100? $200?
If you're planning on riding them hard, then research the brand a bit. Some brands have had inserts that came loose.
But, you have to set a budget. $50? $100? $200?
If you're planning on riding them hard, then research the brand a bit. Some brands have had inserts that came loose.
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12-10-21, 02:15 AM
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This past June I bought some super light Kuota cranks for one of my road bikes and I can say that I do feel a difference. I actually feel more of a difference than I did switching to a light wheelset. But my single speed bikes are steel and carbon cranks wouldn't look right on them
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12-10-21, 09:35 AM
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Getting past yays or nays for your choice of a crabon crankset - my thinking is that choosing one based on it having to be able to work with your existing bottom bracket may be a mistake. What you have is not particularly special and doing it that way limits your choice of cranks. I think it makes more sense to choose your crankset based on its own merits then get a correct BB to fit with it.
Good luck whatever you decide...
Good luck whatever you decide...
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12-13-21, 02:32 AM
#11
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Getting past yays or nays for your choice of a crabon crankset - my thinking is that choosing one based on it having to be able to work with your existing bottom bracket may be a mistake. What you have is not particularly special and doing it that way limits your choice of cranks. I think it makes more sense to choose your crankset based on its own merits then get a correct BB to fit with it.
Good luck whatever you decide...
Good luck whatever you decide...
12-13-21, 02:35 AM
#12
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I found most issues on carbon cranksets were about weak spider, so I will be looking for a GXPdirect mount on carbon crank arms too
12-13-21, 09:11 AM
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I have a Specialized carbon crankset with an aluminum spider. I haven't had any issues with it, but the cranks with integrated spiders appear better built.
12-23-21, 07:59 PM
#14
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Finally I decide to go for a set of titanium cranks with GXP, and a direct mount chainring.
12-24-21, 12:38 PM
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12-25-21, 12:10 PM
#18
Clark W. Griswold
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I doubt it probably something from Alibaba and his 40 thieves but those Bastion cranks are mega sexy and I am trying to justify to myself why I should spend that kind of money for those cranks for a new build I have planned even though, I do not race track and have no velodromes nearby and no plans to race. Maybe if I sell another bike or two but in the end I will probably stick with the Sugino Super 75 DD which is still ridiculous but less expensive...HAHA but the idea of a mostly ti bike with ti parts is pretty neat.
