Bicycle Mechanics - Bearing size and number for XT 1 1/4 threaded headset
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06-04-10, 11:34 AM
Can anyone tell me what size bearings and how many for this headset? I hate loose ball headsets...
06-04-10, 05:57 PM
I remember that they used larger than typical. Maybe 1/4" for the bottom race and 7/32" for the top.
Why don't you don't have the old ones?
06-04-10, 06:27 PM
A Google search turned up this: http://www.bikepro.com/arch_products/headsets/ashimmtb_hst.shtml
According to this web site the 1-1/4" XT headset used 22 x 5.5 (0.2245") mm loose balls in the lower race and these aren't a standard size anywhere I know of. The closest SAE size would be 7/32" or 0.2188". Oddly, the 1-1/8" version used standard 1/4" balls.
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