wakeboardr42393 wrote: It was 7mm if I recall correctly. Fit perfectly. 1/4 inch is a tad too small.
Our bikes ARE metric built after all..
The Kawasaki dealer nearest to me sold imperial sizes, not metric. The place is defunct.

7mm would probably be a tight fit.
8mm = 0.315" --- (
8/25.4)
5/16" = 0.313"
6mm = 0.236" --- (
6/25.4)
1/4" = 0.25"