Maybe something is stuck in a tire; nail, screw, pebble in the tread?

Sent from my iPhone

On Oct 21, 2013, at 9:59 PM, JRodgers <jrodgers113@GMAIL.COM> wrote:

> Many, many times we Volk's have reported strange noises and asked what
> they meant - hoping to head off disasters. Well, it's my turn, it would
> seem.
>
> Imagine if you will, you are on a bicycle, and you have attached a
> rectangular piece of card board to the front wheel fork so that the edge
> of the card board sticks out just far enough in to the plane of the
> rotating wheel that the card board strikes every spoke as it passes by.
> At slow speed its an innocuous  put-put-put-put, but as the wheel speeds
> up the tempo changes to a distinct whir like a small motor. We all did
> this as kids. Right? Well, I've got the whir without the cardboard - in
> my Vanagon.
>
> This whir sounds just like that cardboard but it begins to become
> noticeable around 50 mph - gets louder with more speed and disappears in
> road noise around 65 mph.
>
> I am concerned! There is no vibration associated with it. I am wondering
> if some bearing issue is developing - or other.
>
> Anyone care to speculate?
>
> Thanks,
>
> John