I bought this system a few years ago and have 7 hours run time on it. It worked very well...was able to cruz at about 30mph and topped out at 35. The only problem was the local police!!! They stopped me once and made it clear that the bike was illegal and that I would be fined if stopped again...Soooooo the system sat in my basement for about 3 years and I figure its about time I let it go....I have different size rollers and some custom made mounting brackets, a couple of throttles included...the systems sells for $700+, but will let it go for $350 plus shipping.... dachrist1@verizon.net