Fat Tire Trader
Devout Dirtbag
Pictures of your front and rear rims and hubs? I'm thinking that the front wheel might be original. Take a look at where your front brake pad sits in the slots of the brake. How much can the pads slide up to accommodate a larger (700c) rim. Keep looking for seat posts that might fit. I think that there are some that have smaller diameters. I have only found it necessary to have the suspension post for the stoker.