Originally Posted by
Viich
So what I'm trying to convey is that 451 is now labeled as, in addition to 20" with fractional sizing, 20" with decimal sizing but branding on the tire of OS20.
Because bike manufacturers hate us they also claim that, for no reason they've disclosed, OS20 at 451mm is not compatible with the fractional sizing 451mm.
Back to the original question, 22" for freestyle BMX is 457 BSD.
You're likely to be able to fit a 22", but you may be restricted to narrower tires.
457!! OK, that was not understood, that gives a much better understanding of things. I thought you were talking purely about 451 vs 406. So are you trying to fit 457 tires on 451 rims, or 451 tires on 457 rims?