There us a lot of mass down low, plus some of them use solid tires. The
narrow ones are typically found on the job site and are designed to fit
through your standard doorway. Besides, thats what roll cages are for :-)

steamer wrote:
--Yes, they look like fun but I always get the impression they'd
tip over on the slightest incline. Maybe not true, but they *are* pretty
narrow..


--
James P Crombie
Slemon Park, PEI
Canada
Machinist - 3D Cad Design - Amateur Astronomer

http://www.jamescrombie.com