Any question answered...

Whereabouts are you?

Balham.

They're really stubborn fucks. What is it?

Can you just cut the offending parts off? #ouch

It's a Repco Continental, basically like this only without the rack, guards, streamers and spokies: http://farm4.staticflickr.com/3476/4564398028_664b840da6_z.jpg

I haven't got any cutting tools or a workshop to keep them in so I'm limited to fairly basic methods until I give up and take it somewhere with proper tools. There's a tyre shop right next door to a bike shop locally so those two will be my next ports of call once other options are exhausted.

If you want to stop the other crank moving, get it just offset from the chainstay and stick a big bar of something between the two (and some padding between said bar and chainstay, you don't want a dented frame). This should give you moar leverage, you may run out of hands/ heavy things to hold things in place though.

Ah, yeah - that was another thing I tried, using a big spanner to brace the crank against the chainstay. Running out of hands was exactly what happened - it's not easy to hold it down with one while levering with the other!

Have you had Indra ride it yet?

It's the components I want broken, not the frame!!!!