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Head set size

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Old 04-26-20, 07:23 PM
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trek330
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Head set size

I have a 2005 LeMond Tourmalet.It has a Bontrager headset and the catalogue lists the dimensions as "25.4/34.0/30.0, 36.3mm stack height".Is this unusual cause I don't seem to find a match for this on line.Is there a cane creek equivalent?Thanks.
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Old 04-26-20, 08:47 PM
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Andrew R Stewart 
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One solution would be to measure the actual headset. The specs were published before the becoming standard size reference used today. Is the fork steerer and HT tapered? Is the steerer a 1" OD all along it's length? Andy
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Old 04-27-20, 12:56 AM
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tFUnK
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According to Bikepedia it takes a "1 1/8" integrated Slimstack Direct Connect" headset. If you take out the bearings there might be some numbers printed on them with the actual dimensions that you can then try to match up with what's available out there.
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Old 04-27-20, 05:01 AM
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dsaul
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Yes, those numbers are unusual. 25.4 indicates a 1" steerer tube. 34.0/30.0 indicates a standard head tube cup size and crown race seat for an 1 1/8" headset. You are going to need to take it apart and measure the actual parts
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Old 04-27-20, 05:26 AM
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OK.Thanks.
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Old 06-20-21, 09:32 PM
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did you ever figure this out?
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