bmxunderground
15+ Year Contributor
- 217
- 4
- Dec 11, 2007
-
Bowling Green,
Kentucky
Has anyone here running the crower 2 turbogrinds experienced any oddities in vibration throughout the RPM band? Here's what I'm getting at.
There is a very odd but distinct vibration at about 3k to 4k. I will try and articulate the sound being made by this vibration. driving with knobby dirt tires is all I can come up with. It makes the noise with no load and less with load.
I cant find anything rubbing, the clutch being pressed or not doesn't make a difference. It's bugging me, because in all of my experience I've never had this type noise! There doesn't seem to be anything contacting anything, almost like the combustion alone is creating the noise. But then again, I don't think I've heard anything from peoples videos other than loping idle so I'm concerned.
chime in if you have any information that could help me out. I'll keep inspecting as time permits tomorrow evening.
There is a very odd but distinct vibration at about 3k to 4k. I will try and articulate the sound being made by this vibration. driving with knobby dirt tires is all I can come up with. It makes the noise with no load and less with load.
I cant find anything rubbing, the clutch being pressed or not doesn't make a difference. It's bugging me, because in all of my experience I've never had this type noise! There doesn't seem to be anything contacting anything, almost like the combustion alone is creating the noise. But then again, I don't think I've heard anything from peoples videos other than loping idle so I'm concerned.
chime in if you have any information that could help me out. I'll keep inspecting as time permits tomorrow evening.