Originally posted by Big Fred
My 220, '03 has a stock rear sproket (48)
Originally posted by skipro3
12 is fine for the front. Maybe at speeds faster than the KDX is capable of, there would be problems, but not here. My 1999 KDX220 has it's stock chain and a 12 since new, and it has almost zero wear and stretch. I'm hanging onto my 13 for the day I finally make it to the desert and some high speed stuff.
I am quite clear here that I am not stating your area's riding conditions. So, while I admitted then I may have something to learn about geography, (obviously not from you) you need a reading comprehension lesson as much or more.I think, but not stating as fact, that the conditions I ride in can not be found in, Indiana.
Originally posted by Jaybird
20HP @ 5000 Engine RPM's
1st gear ratio of 15:29(1.93:1 ratio) which means at 5000rpm our CS is turning 2591rpm's (5000/1.93)