Personally i would go for the urbans, They flex LOADS, but it makes everything feel so nice, doing a front to back and really flicking off the front wheel. Although they have a lot of flex to them, they are very strong forks and will put up with most trials abuse. The controls are the same tubing but curve out more which i would imagine give a slight amount more wheelbase length than the urbans would. I just like the simplicity of the urbans and trust them for all my riding, either forks will be good so at the end of the day, its down to you. Ian