Ha, I want to fit it for my 29er. I don't know how I feel about adding 15mm worth of spacers....
My SRAM S-7 IGH has a coaster brake. I believe it is 135.5mm spaced but I could be mistaken. I just bent my 120mm-spaced frame to accept it.
This is a shot from a ride I took with my coaster-braked IGH "tarck" bike-
