GPS speedo - battery powered?!

[TheCake]

Looking for a cheap temporary solution to not having a speedo in the striker. Anyone know of a small battery powered GPS speedo or something I could use? Re-chargable from mains would be ideal...

Ideal product - Road Angel Plus - except its over £300 and I was hoping for something around the £50-80 mark.

 

[edde]

How about one of those speedos from a push bike? only a few quid work off a magnet?

How is it road legal without one?
Demon Tweeks sell one which has a sensor on your axle and picked up by another static sensor I'll have a look tomorrow if you want.

 

[LegoHead]

Garmin etrex...battery powered and hand held, about the size of a large mobile phone.

http://search.ebay.co.uk/garmin-etrex_W0QQfromZR8QQfsooZ1QQfsopZ1QQsascsZ1QQsbrsrtZd

around 60 inc P+P.

 

[jonnyjogpants]

i picked up my garmin i3 for 100 quid.... its quite impressive