I guess 1mm might or might not make a difference, I don't know really.
Visually, the larger belt doesn't appear to be fully seated in the pulley.
I guess it just bothers me that there is a measurable difference between
two parts from the same manufacturer that should be more or less identical.

-Mark

On Wed, Aug 14, 2013 at 8:25 AM, Stephen Grisanti <bike2vcu@yahoo.com>wrote:

> Ah, looks like an AVX10 compared to an AVX(space)10.  There's your
> millimeter.
>
> Just kidding.  I would not think 1mm would make that big a difference on a
> belt. but I've been belt lucky so far.
>
> Stephen
>
>    *From:* Mark McCulley <markmcculley@GMAIL.COM>
> *To:* vanagon@GERRY.VANAGON.COM
> *Sent:* Wednesday, August 14, 2013 10:46 AM
> *Subject:* German quality?
>
> I recently purchased a new PS pump belt, size 10x1075 and it's almost 11mm
> wide. Check out the photo below comparing two belts, both ContiTech, both
> the same part number but the new one on the bottom is almost 1mm wider than
> the older one (measured with a micrometer). If you look closely by my thumb
> you can see where the edge is starting to fray due to the incorrect fit.
>
> http://i.imgur.com/utXtKpK.jpg
>
> -Mark
> 87 Syncro Westy
>
>
>