got basically sotck bike other thanvitos superstock pistons t6 pipes dyna ign. with a +10 swinger running gecko dune tires in kinda red clay rich dirt combo where these work pretty good but really dont know what gearing to run. I had a 15 up front and stock in the rear then went to a 17 up front now i only use 1,2,3 in 400 ft but the bike doesnt start to acc. hard until 4 gear so im killing myself just really want some good opinions. Im riding in Va. if that healps any