ORIGINAL: CDW

Yes, I also think the idea of the bike speedometer is great, but what I thought I will do is to strap my little hand held GPS on the back of my SS 4.6 when I am finished with the break in and tuning. Then I will do it on an open parking lot and make sure I have at least 6 satelites or an accuracy of about 4m. With that I can do a few long runs and it will save the Max speed. I will reset it everytime and after about 10 of these runs just calculate the average to compensate for the accuracy.

Only downside is the weight of the GPS thats added to the total weight of the truck.

Chris