My young fella's bike is a bit of a bitsa and the front end is a wide glide with an adjustable rake...The front wheel is a big fat flh or something similar with a twin disk set up...Now I have changed my 21" single to a 19" he wants to put the 21" on his bike...Is it just a matter,in regards to the brakes,of changing the brake lines to a single line and removing the right hand brake assembly???Is there any problem with using a twin disk master cylinder on a single disk brake???

Cheers...Sparra