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OK, so perhaps I am having a bad evening and can't work Google, but I am stumped. Help!
I have a frame that, when I measure it with a caliper (I didn't believe my plastic ruler), has a headtube with an internal diameter of approximately 39mm. There are no internal features or recesses for any integrated gubbins, it's just straight through 39mm, or 39 and a wee bit perhaps.
So, the question is: What headset type do I need, or even better, can anyone tell me a headset that'll allow me to fit a straight, 1 1/8" fork into this frame, please? Do I just need 1 1/4" to 1 1/8" reducer cups, or have I got something even weirder on my hands?
Cheers
Rob
Google give me this [url= http://www.bikeforums.net/bicycle-mechanics/776474-headset-frame-39-4-mm-1-9-16-i-d-headtube.html ]Here[/url], in other words I think it's a [url= http://www.evanscycles.com/products/fsa/intellaset-pro-headset-ec011411 ]Intellaset[/url]
What's the frame?
1 1/8 is 34mm, 1 1/4 is 37mm, Internal is 44mm, so like you I'm confused?
Best you buy a supply of them, sounds like rare as hens teeth!
Weird!
Bearings likely easily sourced - just the cups that'll be a PITA.
Cheers, it looks like its the EC40/30 & EC40/28.6 "standard" headset I need.
Many thanks 🙂