unless you have a really good reason for adding it (side car, physical limitations etc.
) reverse is not a great idea. If you for get to disengage and shift into a forward gear you scrap your tranny.
Yes I have installed a Baker Reverse on my 2009 Harley FLHTC and recently did a install on a 2014 HD Trike.
Both installs are documented in Tech Article on Bikernet. com