It came standard on my bike.

 

I didn't think anybody looked at their speedometer.

 

only when I see flashing lights behind me

 

Mine does it sometimes too. It's always at the bottom of the speedo face and disappears as I ride. I don't pay much attention to it.

 

Yes, common issue. Airtight speedo gauge is available from their same supplier, but it costs more. Cool nights draw in air or washing the bike, riding in the rain. Next day as you ride the sun expands the air and water condenses on the cooler lens until air movement and the suns warmth evaporates the moisture. Then it does it all over again the next day.

 

Mine always got that after it was washed. The only thing that stopped it was when the bike was in the sun. It seemed to dry it up.

 

better to have a moist speedo then moist undies unless they're someone elses

 

Yep, mine does it too.
I like that video that was posted in the first page. I might modify the face of my speedo.

Thanks for posting that.

 

Ever took your camera outside to grab that quick photo only to find you had to wait due to the lens fogged up?
EDIT: or jumped in a hot shower with 100m waterproof watch on, only to find moisture build up afterwards?

 

I got that. Speedo hasnt been wet in 8 years.