Right. I downloaded a GPS tracker on my mobile today and went out on my fmr50. I've been riding into our village and the little speed warning sign flashes up 30 when the bike tells me I'm doing 40. So I hit 80kmh on the speedo but the GPS logged a top speed of 60kph. I understand that scooter speedos are never going to be accurate but that's a big difference (Yes, I know, cheap Chinese scooter !!!) So Im wondering if, when I need some, slightly bigger tyres would bring the speedo accuracy a little closer to the actual speed ???
I'm quite thankful my speedos have been inaccurate in the past - considering some of the crap i've ridden..
Fair comment, but I bet the Beemers isn't 20kph out, and I know we are comparing German engineering to Chinese mass production. What do you think to the (slightly) larger tyre idea Scuba ??
If it really bothers you, you could mount an aftermarket GPS Speedo to your handle bars. You can get them fairly cheap from Chinese sites like aliexpress. Larger diameter tyres will bring your speedo discrepancy down a little but it's not going to be perfect. Are the tyres currently fitted the manufacturer specified size?
Yes they are, and a GPS was how I measured the 20kph discrepancy, now I know how far out it is I have an idea of the speed I'll be travelling compared to what the speedo says