Vikersund -> Geithus langs Bergsjøen
An even, lightly cycled path through the forest from the center of Vikersund to the "outskirts" of Geithus (which most of Geithus can be considered to be). Forest path with pine needles, roots, hints of loose rock and some small technical challenges in the form of stones here and there.
When you have grinned your way to Geithus, just turn the bike around and grin back to Vikersund just as well.
Most of the trail is rideable by most people, even with a hardtail. Beginners and intermediate trail cyclists can have a lot of fun on this trail, as it is possible to pedal properly - while also providing a nice nature experience.
Remember that these are hiking trails, so take into account walkers with and without dogs!
Vikersund city centre. Park by the bridge, possibly outside the shopping center on the opposite side of the road. The path starts with a graveled footpath marked Øya kultursti and Modum along it.