vwbrian - 19-11-2011 at 07:07 PM
ripsessionkites - 19-11-2011 at 09:07 PM
Seat of the pants, extreme winds
Verify with 2 GPS units
BeamerBob - 19-11-2011 at 09:34 PM
I'm installing my wireless bike computer to validate the gps. Having them verify each other will remove doubt about validity. Also, it would be hard
to get the gps/bike computer to match each other by artificial means, taking most questions of credibility out of the conversation.
van - 19-11-2011 at 09:44 PM
I can usually tell how fast I'm going by the grin on my face. So my method is GoPro video. 
John Holgate - 20-11-2011 at 03:15 AM
Geez, my '99%' isn't looking too flash!!! ooops....
greasehopper - 20-11-2011 at 02:41 PM
GPS times 3 and take the lowest for record runs.
A big hunk of seat fabric missing and ye-olde-perma-grin should be enough to tell everyone present that you've just set a new personal best but it
helps to have something as a indication.
snowspider - 20-11-2011 at 07:14 PM
GPS with smiley face confirmation is good enough for me , unless you beat FAST ARIE's speed , then a combination of all of the above except maybe any
one going that fast has probably moved beyond pinching button holes in the seat.
Bladerunner - 21-11-2011 at 05:50 PM
GPS
Gives
Perma
Smile !
If my GPS says I have a new PB It will be VALID enough for me !!!!
:bigok:
Morrie Williams - 21-11-2011 at 07:45 PM
GPS!
I started with bike speedos prior to GPS. Above 40mph the bike speedo got a little flakey.
airin - 22-11-2011 at 11:41 AM
GPS, sneaked it away from my bikes....21 kmp ... a PB?! :wee: