Currently building a new mountain bike and for the time being I'm using the old forks until I buy some new ones.

My question is how do I find out what type of headset I need? Because from my understanding there are quite a few different types.

Update: I have uploaded a couple of images. It looks to be integrated, as there are bearings/cups already in the frame and threadless. The steerer/stem width is 1 1/8th.

I think that solves my question.

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1 Answer 1


There are a few factors to choosing a headset, primarily frame related:

  • Does the frame require a threaded (1") or threadless head set?
  • What is the headtube/ steerer type (1.5 straight, tapered, 1 1/8 straight)
  • Is the headset integrated (cups sit within the frame)?

Deciding if a fork will fit is a bit easier, is the steerer the correct length (it can be longer, you can use spacers above or below the stem for fit) and is it compatible? You can get headsets that interface some head tubes to steerer they are tapered steerer in 1.5 head tube or 1 1/8 steerer in tapered head tube.

Firstly identify what headset you need first and work from there. Cane Creeks headset finder is a good start.

  • Thanks @DWGKNZ - very helpful. I will find out the answers and get back to you. If I'm unsure I will post some pictures. Sep 28, 2014 at 6:31
  • Updated my question with a few images. Sep 28, 2014 at 11:52

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