What do these numbe...
 

[Closed] What do these numbers mean? Crown Race and Steerer Tube measurements

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''Fits one inch head set of 26.4mm crown race.

British 1 x 24 steerer tube length 205mm. 55mm threaded section included.''

What do they all mean basically?

I know they're for road bike forks which go with headsets which are British one inch and threaded, with 55 mm of thread at the top, but what about 1 x 24, and the 26.4mm crown race mreasurement? Would they be for a standard 1 inch Campagnolo road headset measurement?

Many thanks

Tim


 
Posted : 21/11/2009 5:24 pm
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bump for sunday


 
Posted : 21/11/2009 11:55 pm
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I believe the 1x24 is the diameter-1" and the thread pitch of 24 threads per inch (standard as I recall).The 26.4mm is probably the diameter of the raised portion that the crown race presses onto.
Wouldn't hazard a guess if anything by Campag would fit, they seem to have their own standards for other stuff.


 
Posted : 22/11/2009 12:10 am
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[url= http://www.sheldonbrown.com/gloss_ha-i.html#headset ]Link to Sheldon Brown[/url]

Sounds like a "1" ISO Standard" with 26.4mm being the I.D. of the crown race.


 
Posted : 22/11/2009 2:32 am