Dublin ratios

Caz as a temporary solution you could take the freewheel off and loctite and rotafix a cog onto the ss threads, I have a spare 18 that you could borrow but you would have to use it on the fixed side since it is a miche adapted cog.
I would give you my 15 but I do actually plan to take some saturday morning off work and go racing.

Stein - nice one thanks - It'd be great to borrow your 18 for a bit to try it out to see is it too silly or serious fun!

BTW - On a Saturday you'd be doing accreditation more so than racing - racing is Wednesday. But this Saturday is an international (apparently 8 girls from Holland coming over) and - get this - includes tandem racing.

Maybe you all know what this is - I was fucking amazed to find out today - seriously - fixed gear tandem bike races!!! Can't wait to see that!