I wouldn't know bout that one. I've never flipped or rolled mine yet.
I did get too ballsy and pulled a wheelie where it got stuff at like 90 degrees on the grab bar and nothing came out.
Lil embarrassing when you got to get off and push your front end back down with people watching.....
LOL.....Done that 4 times now. 3 before I rebuilt it and had no grab bar, once since the rebuild, and had to reweld my grab bar. I gotta make it out of some beefier stuff, or more bracing or something if its gonna hit the ground and keep me from going over backwards. Right now It allows me to get a little past 90, maybe 100 degrees and it hits, but it keeps it from flipping if it dont break! LOL
.....Might have to add some skateboard wheels to it....=))