hey guys im having a problem with my SIR crx.

When driving, the car is fine till about 40km.
after 40 the car starts to vibrate as if the wheels have flat spots.
as you increase speed the vibration gets worse. After a few seconds
of traveling at speed the car begins to vibrate worse. Feels like the intermediete
shaft or axels are loose or wrecked, but there fine. i cant see anything wrong.
I NEED HELP!

 

tires out of balance?

 

How many miles are on the car it could be the wheel bearings.
How old are the axles?

 

yeah your tires may need balanced.. thats the cheapest thing to try,
maybe a bent wheel?

 

thanks guys i found out the problem.
it was a faulty axel.
it was new out of the box but the joint was locked.
but its fixed now. Thanks a bunch.