I have heard that on one have sorted this problem out about being able to use tapered steerer forks with 16″ carbon 456 frames any one know if that’s true and if so what do I need ?

Peter Poddy to the forum!

Edit: slightly more helpful – I think the problem was limited to rock shox, and is sorted with a higher stack headset. On One are very helpful if you ask them.

If it is a rockshox fork then call on one and request the external bearing upper headset cup.

If it’s a Fox fork then you should be okay.