Originally Posted by
bleedingapple
Sorry for the delay... Long day... Anyway here are the pics... I cut off the u-brake posts in the back so I could put on some old school road, long reach center pull/ u-brakes and then just some long reach road side pulls in the front... I cant lock both wheels up with these brakes. Locking the back and skidding is **** tons of fun... I have my egg beaters on it at the moment as this has been way too fun to ride... And yes that is a chain wrapped around the seat tube/ seat stays. this is my polo bike and so I have set up a dingle speed... The bars are off one of my 16" kids bikes and the levers are v brake levers which helps all this work... I have a half link in both chains to get them to fit as the drop outs are a little short, and as you can see while in my commute gear there is a bit of slack...

That's awesome -- nice job and very resourceful. I'd never even considered trying to pop a 700c in a mountain frame (probably b/c I'm a fender junkie), and I really dig the caliper workaround. For what it's worth, that chain tension looks perfectly fine to me.