What exactly is GB4? Ive been meaning to ask this because I can’t seem to figure it out, a lot of threads mention it though.


GB4 is George Barnes IV, a great unicyclist and maker of sweet unicycle frames, as well as other parts.

Hello. GB4 Manufacturing is George Barnes’ unicycling company that makes frames, reeder handles, seat posts, among other things. He makes excellent stuff, I have a frame, a seatpost and a handle from him, and I’m more than satisfied with all of them.