Hi. I have for sale a never used original QR20 axle clamp (not a reproduction) for some of Marzocchi forks. It doesn't fit all Marzocchi forks with QR20 axle mounts! Marzocchi part number: 505057/1>C Please see last photo it shown difference between 505057/1>C (bottom in photo) and 505057/1>A (top in the photo). Price is for one (1) not all in the photos.