steerer tube internal diameter for headstand adaptor?

[acrmnsm]

I got this great looking front headstand paddock stand, but the adaptors it came with are all too small largest is 18mm.
You can get bigger adaptors, but I need to know what size and I can't get to the bike now.
So does anyone know off the top of their head the internal diameter of the steerer tube?

[sirch345]

A 1/2” 17mm socket seems to be the correct fit, have a read of this link: https://vtr1000.org/phpBB3/viewtopic.ph ... et#p468174

Chris.

[acrmnsm]

Thanks so much. That's exactly the same stand as mine.
I have cbr400rr and Honda ft500s knocking about the place and they all seem to be way bigger than the "standard" 19mm or less that the stand came with.
In the meantime I got my 14 year old to do it, she did exactly that, tried sockets until one fit without much play.
Then she measured the OD of the socket with my very-near calliper.
Its 24mm ID according to her, but now that I can bodge with a socket I'll do that tonight and measure myself and order the correct one later.

[sirch345]

My memory said it was a 17mm socket, but I thought I best check with that link first

Good luck with it,

Chris.

[acrmnsm]

Cheers.
It fits the OD of our 16mm socket apparently so close enough, anyway I have 4 different sets and an imperial set so one will fit.

[acrmnsm]

Ok I got in there with the verniers last night, it is 24mm so the 17 socket works fantastic.
They have the correct sized pin for 8£ on backorder at sportsbikeshop.

[sirch345]

Ok I got in there with the verniers last night, it is 24mm so the 17 socket works fantastic.
They have the correct sized pin for 8£ on backorder at sportsbikeshop.

At least you got there in the end, and your 14 year old was spot on

The only thing I could think of which may have made the 17mm socket the wrong size was how thick the wall of the socket is from different manufactures

Chris.