The only niche open to Grant is at the upper end. He could spec out a "poor man's" Riv. It would have to be made in China or Taiwan. but he couldn't make money for long at it. Others would copy it if it caught on and would sell it cheaper could.
Any way here's mine. It is from an 87 Panasonic Mountain Cat. I had many of the parts on it already. I changed the stem, handlebars, fenders, seat and tires. I plan to add a rack, front basket, and a kickstand next.
