yep - harley davidson. specifically, for v-rods. his latest part that he developed and is selling is an extended 5 gallon gas tank, and has a support section on the UE website for it.
he (robin) has a v-rod that's about as maxxed out as a full UE SuperMaxx, lol. this is a shot of his bike...not sure how current it is, but holy *BLING*
http://www.unlimitedengineering.com/...les/1/2020.jpg