The steel Bombtrack Hook EXT is Bombtrack’s new 2017 do-it-all model... The 650B/27.5″ wheels and custom frame and fork spacing allows riders to use mountain bike rubber on the Hook EXT. Riding big wheels on adventure road and ’cross bikes is a growing category, with bikes like the Van Dessel A.D.D., 3T Exploro and Open Cycles U.P. all officially embracing dual wheel diameters.
It looks great. My only concern would be the short wheelbase, and how bad the toe overlap would be, especially since the large size frame is the same wheelbase as the medium.
