Review on Dolphin1986 Motor Engine Motorized Bicycle by Jeremy Levendusky

This mounting hardware arrived quickly and as described. I didn't check my existing (broken) screw size and it was slightly larger than mine. My Seeutek kit was bought from Revain about 3.5 years ago and I think they beefed it up a bit which was a good idea considering mine ended up breaking. (I had 6mm x 70mm). So do yourself a favor and check it out!