Engine vibrates above 33kmh

[GW's Motorized]

If your wheels are not true and round it could be that.
You should check your tires too. My bike had a bad vibration before I changed tires, but that also might be the inner tube that was bulging out.

 

[metalmonster90]

If your wheels are not true and round it could be that.
You should check your tires too. My bike had a bad vibration before I changed tires, but that also might be the inner tube that was bulging out.
View attachment 190149View attachment 190150

Yeah my tires definitely dont look like that and i made sure the inner tube was not bulging both the tubes and tires are new im thinking it has to be the bearing cassette.

 

[GW's Motorized]

Yeah my tires definitely dont look like that and i made sure the inner tube was not bulging both the tubes and tires are new im thinking it has to be the bearing cassette.

A bum bearing would do it. Is the vibration from the front or rear?

 

[machanic]

If your wheels are not true and round it could be that.
You should check your tires too. My bike had a bad vibration before I changed tires, but that also might be the inner tube that was bulging out.
View attachment 190149View attachment 190150

That's a pretty fuggly tire

 

[GW's Motorized]

That's a pretty fuggly tire

Yeah, it's the original tire from the frame.

 

[machanic]

Yeah, it's the original tire from the frame.

I think you got all you could out of it.

 

[GW's Motorized]

I think you got all you could out of it.

That tire was rode hard even when it was a pedal bike. I probably could have got more, but not safely

 

[machanic]

As for the vibration, got one tire at a time off the ground and spin it, check for wobble, looseness and bearing noise. Removing chains to check rear wheel makes this easier.

 

[metalmonster90]

A bum bearing would do it. Is the vibration from the front or rear?

No i think its a small air leak luckily i know where it is and how to repair it and its in the front

 

[GW's Motorized]

No i think its a small air leak luckily i know where it is and how to repair it and its in the front

That makes sense. Glad you figured it out