Hi I just decided to go to a wider tire for comfort schwalbe 1 s-one in a 30mm tire on a Ambrosio nemese rim.
The tire keeps rolling on the rim. Thinking it is to wide to seat properly was looking at youtube https://www.youtube.com/watch?v=OkAJmHGKQUk tallkng about CX tires rolling and the need for a filler tape,
anyone using there tires on a narrow rim
any advice
Thanks
Chris
Tubular rolling
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- Thoglette
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Re: Tubular rolling
Postby Thoglette » Sun Dec 10, 2017 11:08 pm
Get a dictionary and re-post your request with correct spelling and grammar. 1/2hillbrick-rider wrote:any advice
I think I understand what you think your problem is. To which I'd say that there is no excuse for tubular tyres to "roll off" if glued on properly and run with normal inflation pressures. I am assuming you have only recently glued them and glued them yourself. Is that the case?
What tyre pressures are you using? Are the tyres hitting the frame when under load?
Stop handing them the stick! - Dave Moulton
"People are worthy of respect, ideas are not." Peter Ellerton, UQ
"People are worthy of respect, ideas are not." Peter Ellerton, UQ
- Derny Driver
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Re: Tubular rolling
Postby Derny Driver » Sun Dec 10, 2017 11:17 pm
Recommended tyre size is 23-28mm
30 may be a bridge too far
30 may be a bridge too far
- uart
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Re: Tubular rolling
Postby uart » Mon Dec 11, 2017 3:48 pm
Wow, 4 to 5 days to mount a tyre! That setup definitely wouldn't work for me.hillbrick-rider wrote:looking at youtube https://www.youtube.com/watch?v=OkAJmHGKQUk
Chris
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Re: Tubular rolling
Postby hillbrick-rider » Mon Dec 11, 2017 4:48 pm
Just under the max pressure of the tyreThoglette wrote:I think I understand what you think your problem is. To which I'd say that there is no excuse for tubular tyres to "roll off" if glued on properly and run with normal inflation pressures. I am assuming you have only recently glued them and glued them yourself. Is that the case?hillbrick-rider wrote:any advice
What tyre pressures are you using? Are the tyres hitting the frame when under load?
No the tyre is not hitting the frame anytime
had a closer look at the tyre and it is running true, no wobbles. just the under section ( gluing strip )is now sitting right at the top of the rim one side and plenty on the other side on maybe half the rim
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Re: Tubular rolling
Postby Thoglette » Mon Dec 11, 2017 6:02 pm
Tubulars do turn themselves inside-out if inflated hard when off the rim. That suggests your glue job didn't work at all : something that I've never seen. (Old glue failing, yes). I'm without my notes but most glues get to 90% strength in a few hours.hillbrick-rider wrote:had a closer look at the tyre and it is running true, no wobbles. just the under section ( gluing strip )is now sitting right at the top of the rim one side and plenty on the other side on maybe half the rim
I'm presuming your youtube video has the usual at-least two coats (for fresh tyres/rims)? The standard method is outlined by Dave Moulton's blog article and nothing's changed in half a century.
If you deflate the tyre, is it still tightly glued to the rim?
Stop handing them the stick! - Dave Moulton
"People are worthy of respect, ideas are not." Peter Ellerton, UQ
"People are worthy of respect, ideas are not." Peter Ellerton, UQ
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Re: Tubular rolling
Postby hillbrick-rider » Mon Dec 11, 2017 6:44 pm
"If you deflate the tyre, is it still tightly glued to the rim?
Tight enough that I had to really put some muscle into moving it
Tight enough that I had to really put some muscle into moving it
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Re: Tubular rolling
Postby eeksll » Mon Dec 11, 2017 9:31 pm
hmmm you would be presuming shortThoglette wrote:I'm presuming your youtube video has the usual at-least two coats (for fresh tyres/rims)?
- MelodyWheels
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Re: Tubular rolling
Postby MelodyWheels » Tue Dec 12, 2017 12:39 am
The edge of the tyre should not lift up when you force it firmly with your thumbs (inflated fully or at low working pressure say 40psi). If it lifts up there is a "starved joint" and an adhesion failure. i do think a doublesided tape such as Velox or CX tape (the Belgium method) would be worth a try for the shape of the tyre and rim that you have. I've used it on CX tubulars (33mm wide) on similar width rims with great success. I don't know anything about Butter's tape but its a cool video.
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