After an accident on my Moto Guzzi I had to rebuild both front and rear wheels. Like Vincent wheels the rims are centered on the hubs and have 40 spokes. Before stripping my damaged wheels I laid the new rim on top of the damaged one and numbered the holes on the rim to correspond to the holes on the hub. I used one red and one blue marker to indicate which side of the wheel the hole corresponded too. Numbering beginning at the inner tube hole. Additionally the Guzzi wheels are a cross one, so odds for outside and evens for inside. Just had to make sure the rim was the right way around because of the angle of the hole in the rim.
Steven
Steven