Dualsport Navigating by Sidecar
Posted: Thu Jun 28, 2007 6:03 am
You need a tripmeter accurate to .01 miles to navigate the course. I use a SIGMA bicycle speedometer. Cost about $20. Easy trip reset with one button. The last one I bought was a Sigma BC 506. A roll chart holder is also required. You can get it from Tucker Rocky, Chaparral or Dennis Kirk. Any moto shop can order one for you.
I buy larger magnets from RadioShack, which I glue to the rim with JB Weld.
Calibration is as simple as measuring a single rotation of the tire to get the circumference in mm and entering the value into the Sigma. I calibrate that against a GPS reading and fudge the numbers if I need to get a closer reading. You need the tripmeter to be accurate, so don't worry about speed, focus on distance over the road.
http://adventuresidecar.com/ASSFLEET/assfleet4.htm
I buy larger magnets from RadioShack, which I glue to the rim with JB Weld.
Calibration is as simple as measuring a single rotation of the tire to get the circumference in mm and entering the value into the Sigma. I calibrate that against a GPS reading and fudge the numbers if I need to get a closer reading. You need the tripmeter to be accurate, so don't worry about speed, focus on distance over the road.
http://adventuresidecar.com/ASSFLEET/assfleet4.htm