RADBMX.CO.UK
Technical & Reference Section => Tech and Restoration => Topic started by: moley on October 22, 2008, 06:33 PM
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My Auburn has a slightly larger Headtube diameter than my other bmx's (oversized)
My early 90's Haro Group One also has a larger Headtube diameter too.
A normal 1" headset cannot be used because the Cups just fall out of the headtube (too loose).
The Auburn came with 1" threaded Forks and a Headset installed. I measured the cup diameter and the Auburn's Headtube diameter and they are approx 34mm. (Headtube being slightly smaller than the Cup so it wedges in)
A normal bog standard 1" headset (Tioga Beartrap 2, YST and GT Pro Series) cup diameter are approx 32.5mm in diameter.
The Auburn Headset internals are in a shitty state and so are the cups. So I would like to replace the lot of them.
All the internals from a normal headset fit into the Larger diameter Headset cups.
Is the 34mm Headset cup diameter classed as a 1 1/8" Threaded headset (suitable for 1" forks/quill)
Does anybody understand this?
I need to know what headset to buy that :-
1. Will fit my Auburn the the Oversized headtube (34mm)
2. Will fit my Auburn 1" thread forks.
Any help would be appreciated!!
Cheers! :daumenhoch:
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Not much help,but I`ve just measured a Cane Creek 1 1/8 headset cup & that shows as 34mm diameter???
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I have come to that conclusion myself!!
I need to find a threaded headset that fits 1" forks but 1 1/8" head tube!! :daumenhoch:
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dont know, iknow you can get internal 1" aheadset with 34mm outer semi / fully intergrated . try fsa site.
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moley have a look on your other thread....