I've got a 25 Plus Four about to get off the boat and I opted for the wire wheels without really understanding the centerlock vs normal wheel hub differences. I've been hunting for potential spare wheel setups, since it'll be a daily (I've already got winter tires sent to the dealer, which'll be put on before I even see it) but can't for the life of me find a good online reference for the bolt pattern or the hub center bore diameter (of either OEM wheel). What kind of maintenance action is a hub swap? Outside of the OEM wire wheels, does anyone have a 15 inch centerlock wheel they've been able to find? The big thing is I'd like to eventually just have two sets of wheels instead of just two sets of tires and am trying to catalogue options and compatibility; and then figure out if I commit to two sets of wires or change the hubs and figure out two sets of something else. Thanks for any help.