Holes fit perfectly but I had to dremel out the inlet deeper to get the fin to move on closer so the holes aligned.Also bolts provided are barely long. enough, had to use longer.Locknuts are thin without much bite 11mm, I used thicker ones.Not as wide as my prior Doyle fin but is a bit deeper.Seems to bite well around corners holding me stable while prop is trimmed for speed.
Rating:
[4 of 5 Stars!]