20 miles of headwind. In a loop! How?? It defies physics.
it only happens with headwinds too.
20 miles of headwind. In a loop! How?? It defies physics.


Do you not have an SD card in it? And have it set to record to SD rather than internal storage?![]()
Nope, no sd slot on the 500. I had to format mine earlier this year as something went wonky and it used to take hours to sync. I need to fiddle with it now as it's pretty much back at factory settings so does things like beep every 5 miles and tell me how long it took me.
I think you'll regret that move...
So, after my two rear punctures today I'm seriously considering tubeless tyres. Anyone run with them?

New tougher tyres might be better?
Are you getting pinch punctures or something breaking through the tube?
2 punctures in quick succession is usually because it wasnt fixed properly the first time. Either whatever punctured it is still lodged in the tyre and wasnt fully removed or it wasnt pumped up to the right pressure again and pinched.
I run some tubeless tyres on my MTB it's not as popular on road bikes though. You need* compatible rims which may be hard to find.
*you can bodge it together on some rims