5/16" x 1.50" fender washer that meets the requirements of most racing organizations for seat mounting and mounting weights. Many organizations require one 35mm washer on the inside of the seat and the outside of the seat to prevent weights from pulling through the seat. The hole measures 5/16" which fits the standard M8 bolt and the outer dimension of the washer measures 1.5" which is 38mm exceeding the 35mm requirement.
*Sold Individually
