May depend on the exact struts you're using, but my PVC 'prop' is 8.2" long.

I just carry it along in case one of the struts fails on the road.
Seems to work... ever since I put it on the shelf the struts have
never failed.

Geo

On 3/13/10, Bob Stevens <mtbiker62@gmail.com> wrote:
> Install one of the PVC's about 12" long and about 3/4" ID. They're very
> convenient and easy to install while chainging struts,...