interesting read

I like this, The real speed of cars is only 3.7mph

Also from the same site and following on from a discussion with Si last night of my biking anorak-ory
In Arthur Conan Doyle’s The Adventure of the Priory School, Sherlock Holmes demonstrated his ability to identify bicycle tyre treads:

“I am familiar with forty-two different impressions left by tyres.”
I reckon I know atleast 50 so bum to you sherlock :-)