[outlaw]

i have a vibration at about 40-55 mph----checked tire balance--pressure--and the rim---

 

[johnnyig]

Its normal. theres a bit of vibration from around 45-50 or so, but around 60 its gone. I think everyone has it. It happens at certain rpms throughout all the gears...I think someone had mentioned that it was the point where the balancer on the crankshaft is least effective or something. it shouldnt cause you any problems. -John

 

[GameCockX]

Harmonic Frequency; all rotating equipment have certain critical speeds where harmonics are additive causing larger vibration peaks.

Just go faster!!!!!!!!