No, I don't mean odometer I found this while browsing another site today, it's a device made for measuring room between a cyclist and an overtaking vehicle. Certainly an interesting bit of kit.
http://www.ghisallofoundation.org/projects/2012/0003/
I estimate it'd be around £300 to build in the current state so it's not really feasible, but it's an interesting concept.
http://www.ghisallofoundation.org/projects/2012/0003/
I estimate it'd be around £300 to build in the current state so it's not really feasible, but it's an interesting concept.