I recut the BB shell to take standard cups. Going to narrow the shell too.

I seen in a BMX paper 10 years ago, about putting centrepull brakes on the chainstay bridge. Lots of modern BMXs have them there now. One of my RSWs has a Delta style centrepull brake under the chainstays. I got a brake bridge welded to my Grifter. Heres a pic of the brake on it



Have to get round to finishing it.

Oh yeah. My other RSW has a S3B rear drum brake hub. It might get used on something else