GSM020 is a good choice. It is on my wish list for future purchase. Watched a YouTube vid on it out of U.K. and the acceleration and speed graphs are top notch.
Currently using the reliable and rugged GSM-015. I like the instant read feature on its face. That and having the run pattern...
Hey Nutts. Sounds like fun. XRT is fast out of the box. 50+mph according to the TRX XRT site. What speeds have you gotten out of it so far? What are you using to record speed?
Reading the specs, XRT comes with 20/50 pinion/spur gearing for a ratio of 2.5:1. Option gearing for 60+mph TRX...