Ok, I know they're expensive but my god they are good. If you're like me and want epic stopping power without going for disc brakes then these are the brakes you want.

The only thing you have to watch out for is your rims. Pull too hard on the lever and the brakes will crush the rims.
Also want to be careful about not flying over the handlebars. You'll make this look if you do

Mine havn't worked fully yet but even badly bled they can provide some good stopping power.

Anyway, ebay is always good for these so check them out.

Time for me to bleed these