Originally Posted by
unterhausen
I moved this here from randonneuring, since nobody was going to answer there.
Modifying an existing bike to get low trail isn't going to be easy, you're probably talking a custom fork. The industry really isn't making many low trail bikes. And 650b is still a niche size for road tires.
With your set of requirements, I'm afraid you probably are talking an expensive bike, you probably have to compromise.
Great thanks for moving the post unterhausen and thanks for the fork and wheel advice. What do you think is expensive ? $1000 ? I was hoping to be able to do something like pick up a second hand bike with the appropriate frame, wheels and front brake and just swap out the rear wheel for one built with the automatix for a total cost of no more than $500. So something like this ($300) for example:
