Mountain biking

can anyone recommend books or websites showing good trails/off road biking spots in south lakes and yorkshire, desperately need to get some training in
thanks

The rock bottom shop in Grassmere had some guides for MTB routes.

For Yorkshire routes try: http://www.nationaltrail.co.uk/penninebridleway/

In the south Lakes Grizedale forest has lots of big tracks to get the miles in on, as well as the North Face route for some more technical stuff.
Gisburn Forest near Slaidburn is worth a visit too. Have a look at the ForestryCommission's website.

Vertebrate Outdoor do some decent guide books for mountain biking. They cover various routes ranging in distance and levels of difficulty.

Lakes

South Dales

North Dales