Nothing at all. The best you can do is a Gelt woods (footpaths) and then something out Castle Carrock way but its isnt anything techy. We used to do it as night rides to make it more interesting (and quieter) but once you get through the woods its a road stint UP HILL and then basically UP HILL off road and then downhill to then reverse your route back to Gelt.
If you are based in Carlisle you unfortunately need to either accept 45mins drive each way or get a road bike for through the week to get the miles into your legs.