I forgot we had a classified section, had it listed under Ryans free stuff. Correct 32mm size for most Rad Power bikes (double check because some older Rads and I think the Mission use another size). I hits the battery on the Mini Step-Thru because the clamp sits to low on the frame and I forgot why I didn't use it on my 'Runner. I did a bmx clamp with a HexLox on the 'Runner. Anyways, S.Y.S. seat clamp is in excellent condition, have both keys and the backing card with instructions. Call sold in reply section so I know you want it and PM me your mailing address. Will ship via snail mail/USPS. Again, FREE Save Your Seat seat clamp n 32mm size.