Hi Tim here I just completed the Zize 29er conversion !! THis bike Is great it rides really well and offers our customer a larger bike to ride .Are you 6’5″ and want a bike to get you around where you want to go ? This bike has an 8 speed hub upgrade along with a new crank set. The handle bars were changed for comfort and the seat post and seat post collar were changed for strength. This is a solid and unique bike for our customers -Be first in line for this spring !!!