Originally Posted by jdrocks
everyone must already know that there is only a 5-6% difference in mounted tire diameter between the common 19 and 21 DS type tires, hardly seems a big enough variance to make a difference traversing varied terrain, especially on a DS bike, as opposed to a dedicated offroad moto.
the section width of the same tires is a different story, with the variance being over 20%.
so it's unlikely the diameter that accounts for handling reports in mud, sand, etc., the argument comes down to running skinny versus not so skinny.
i like the 19 for running both paved and gravel, does well on both.
regarding my first hi-lighted statement....well as amatter of fact it does make a difference as evidenced by all the positive feedback from those that have actually ridden the various upgrades ...
and the second hi lited staement of yours:,,,,and that is why 90% of the dual sport market is supplied in this configuration,,why we call it our 50-50 set up,,not the ultimate on the pavement or in the dirt,,,hence,,the need to get set-ups that work for your specific needs/riding style /location/intent .