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  • Does anyone know about tapered headsets / forks ?

    I have cracked forks on my green Pinnacle Dolomite 4 which has a 1 1/8 to 1 1/2 tapered steerer so I have been looking.

    @Jon. had some spares and now I am confused as the large bottom bearings doesn't fit on what looks like an integrated crown race.

    See photos - ideas welcome.

    The stock bearing is a TH-073 ACB 36°X45° MR127 FOR 1.5" STEERER


    3 Attachments

    • IMG_20180116_223038.jpg
    • IMG_20180116_223007.jpg
    • IMG_20180116_222406.jpg
  • The ✓ next to 45 on your old steerer would suggest it's smaller than 1.5 inch since the outer diameter of 1.5 inch bearings are 52mm (which isn't checked). Maybe the old fork/bottom headset bearing/head tube is a 1.25 inch, or even 1.375 inch..

    Maybe check the size of both forks with some calipers?

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