I kept the speed sensor after acquiring a GPS module with the thoughts I could see clutch slip and lost traction at the rear of the kart. But if there were any of those conditions, by the time I saw them late at night on a race day or the week after a race it was way too late. Will keep relying on the best sensor in the kart, the driver. Thanks for your comments.
P.S. and it will be one less thing to remove and put back on during an axle swap. :)
LAD Specialties customer / tony kart / rotax / kt100