How long did it take for your kids to learn to ride a bike with no stabilisers?

[Lilliput]

We've just got dd (5) a new bike, well new to her anyway. It hasn't got any stabilsers and I'm not going to faff around getting some.
Any tips for helping her and how long did your kids perservere with learning to ride and were there many tears?

I wouldn't worry! DD was nearly 8 (!) and ds nearly 7 before they finally zoomed off

twenty minutes or so. DS1 was quite old, nine or so before we taught him but DD was five.

that's not true, but he might have been eight