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#1
March 2nd 10, 05:26 PM
posted to rec.bicycles.tech
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25.4mm or 26.0mm?
I recently purchased a 1986 Univega Gran Rally, I want to buy a taller
stem but I'm not sure about the sizing. Is there an easy way to tell what size handlebar clamp I need? Thanks! Hans 
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#2
March 2nd 10, 06:04 PM
posted to rec.bicycles.tech
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25.4mm or 26.0mm?
Hans Protzel wrote:
I recently purchased a 1986 Univega Gran Rally, I want to buy a taller stem but I'm not sure about the sizing. Is there an easy way to tell what size handlebar clamp I need? An easy way? Measure it. Original is 25.4mm If you do not have a caliper, wrap a paper around the bar. 25.4x3.14159 is 79.7mm. A 26.0 bar is 81.6mm circumference. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971
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#3
March 2nd 10, 06:28 PM
posted to rec.bicycles.tech
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25.4mm or 26.0mm?
On Mar 2, 10:04*am, AMuzi wrote:
Hans Protzel wrote: I recently purchased a 1986 Univega Gran Rally, I want to buy a taller stem but I'm not sure about the sizing. *Is there an easy way to tell what size handlebar clamp I need? An easy way? Measure it. *Original is 25.4mm If you do not have a caliper, wrap a paper around the bar. 25.4x3.14159 is 79.7mm. A 26.0 bar is 81.6mm circumference. -- Andrew Muzi * www.yellowjersey.org/ * Open every day since 1 April, 1971 Bicycles and geometry go together? Who'd have thunk it?! Thank you very much! Hans
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#4
March 3rd 10, 12:49 AM
posted to rec.bicycles.tech
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25.4mm or 26.0mm?
"AMuzi" wrote in message
... Hans Protzel wrote: I recently purchased a 1986 Univega Gran Rally, I want to buy a taller stem but I'm not sure about the sizing. Is there an easy way to tell what size handlebar clamp I need? An easy way? Measure it. Original is 25.4mm If you do not have a caliper, wrap a paper around the bar. 25.4x3.14159 is 79.7mm. A 26.0 bar is 81.6mm circumference. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Math? I've spent my whole adult life trying to prove it didn't matter that I hated Algebra and there was no point to it (enjoyed Geometry though!). When no calipers were to be had, I've created a poor-man's go/no-go tool by cutting a slot into a piece of paper. --Mike Jacoubowsky Chain Reaction Bicycles www.ChainReaction.com Redwood City & Los Altos, CA USA
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#5
March 3rd 10, 06:25 PM
posted to rec.bicycles.tech
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25.4mm or 26.0mm?
On 3 Mar, 00:49, "Mike Jacoubowsky" wrote:
"AMuzi" wrote in message ... Hans Protzel wrote: I recently purchased a 1986 Univega Gran Rally, I want to buy a taller stem but I'm not sure about the sizing. *Is there an easy way to tell what size handlebar clamp I need? An easy way? Measure it. *Original is 25.4mm If you do not have a caliper, wrap a paper around the bar. 25.4x3.14159 is 79.7mm. A 26.0 bar is 81.6mm circumference. -- Andrew Muzi *www.yellowjersey.org/ *Open every day since 1 April, 1971 Math? I've spent my whole adult life trying to prove it didn't matter that I hated Algebra and there was no point to it (enjoyed Geometry though!). When no calipers were to be had, I've created a poor-man's go/no-go tool by cutting a slot into a piece of paper. --Mike Jacoubowsky Chain Reaction Bicycleswww.ChainReaction.com Redwood City & Los Altos, CA USA The tape method is more reliable and possibly more accurate in certain circumstances (it doesn't matter).
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