Haven't seen one yet but I would still want to average out a bunch of revolutions instead of relying on one. I have seen some pretty sloppy rears in my day, one turn could be 3.50, 3.70, etc. The more turns you do the closer your average will be. Just my opinion. And I still say (which was my first answer in the other post I linked) the best way to know for sure is to simply pop off your rear cover and count teeth. If deuce_454 had followed the link I posted he would have seen that and wouldn't have found it neccessary to post what was already posted before about counting them. This isn't rocket science deuce.
[ February 02, 2003: Message edited by: dmorris1200 ]</p>