Originally Posted by fatdaddy
Skarrd, If ya haven't beat up yer tube yet, STOP NOW. They make any size u-bolt you could think of that will fit around your down tube. After that it's only a plate with four holes in it. (2 for the motor, 2 for the u-bolt.) If you can't buy the right size it's real easy to just make your own mount with stuff from yer local hardware store and a drill. I've seen some folks try to beat a frame into submission like that and it looks like crap and could weaken the frame. It's your bike, build it your way. But I don't recommend beating up your frame to do it.
AND Dan, How many people do you think got the Arlo "Group W bench" reference?
Heres a link for a double U-bolt setup. A single U-bolt will work too.
lol just a few minutes after i had posted that i checked sick bike parts and saw they had the mount made just for the over sized tube, i needed to get parts from them as well so i got that mount c: