I was told that it is more stable on Hwy and i ride almost all on Hwy and Frw. Did u install a 19" on yours and why?I cant imagine it riding better than a 19" myself. It'll have the same or less sidewall height and would likely ride the same or harsher IMO. A 21 should last 9.5% longer than a 19 though.
actually the 21 i am looking at are thicker 3.5x21 vs the 3x19.The 21s are thinner and do track road grooves more. Ever get one with the thread grooves going around the wheel as they love rain grooves in the road.
Yes, they will spin slightly slower and are typically lighter. However, the taller tire up front will increase your trail by about .5 inches. This will slow your turn in and will make the steering feel heavier.
With a 21 on an FXLR during aggressive counter steering, you can get the tire to pop off of the ground going from side to side.
Keep it stock or go 17".