Not much to update, been busy with Christmas/New Years. Ordered a 38T Supersprox Stealth rear sprocket, and a 16 tooth EX500 JTF512 front sprocket. The EX has the same output shaft splines/dimensions as the KZ650-750. So going from a HUGE 630 chain to a 520, hope this will liven up the acceleration a bit. Stock gearing gives a 2.54 ratio, this setup will give me 2.38...same overall gearing as stock with the shorter 17" rear wheel setup.