In reply to balmybaldwin:
Might help if you narrow things down a bit. Also where do you find tame ?
Heres a good circuit in the middle of the peak
http://www.v-publishing.co.uk/blog/v-publishing-blog/2014-01-20---free-down... , which can be extended by including stuff around ladybower (and even cutgate if you want a long day)
Alternatively, if you're on a rod trip, there's some great stuff just north of Sheffield in Greno and Wharncliffe Woods - possibly not that long, but certainly rocky and rooty. Close to the M1 and good for doing short loops.
As to the lakes, I've not done the big passes - not into hike a bike or pushing - but did do Garburn Pass last year, mostly rideable from the west, great descent to the east, along with other stuff around Kentmere. Also did High Street - long push up from Troutbeck, but brilliant long descent to Ullswater and then a very technical section along the lake back to Patterdale.
But mostly in the lakes I've done a load of brilliant riding south of Langdale and around Grizedale - there's a lot more there than the North Face trail
Post edited at 16:08