64 hta, 76.8 sta, 485 reach, 420 seattube. 160mm fork and with this 216x63 shock 163mm in the back. Going around town it feels pretty normal, idler is not very noticable in the lower 9 gears. There is bit of noise on the 2 biggest gears, but that's probably because I just a basic idler from a Commencal dh bike. I expect once the teeth a bit worn down on the edges it will get a lot more quiet. (I am too lazy to file them off a bit ;-) ) Wednesday I'll put it on some trails.