Swapping wheels round between bikes at the weekend, I was surprised to find that the steel fork on my city bike (a Pompino) has 10 mm wide dropouts. I discovered this when the front wheel from it wouldn't go into the fork on another bike, which has the, what I always though was, standard 9 mm droptouts. This wheel has a nutted axle measuring about 9.5 mm, which I suspect is actually 3/8 inch.
I want to use a 9 mm quick release wheel on the city bike, and since its headset needs replacing too, I was thinking of buying a Surly Cross Check steel fork to replace the Pompino fork. I'll be disappointed if the Surly fork has 10 mm dropouts. It won't will it?