There are at least 3 different routes you can cycle from the Friendship Highway (318) to Everest Basecamp.

This is the main route. Used to be a good road but because there are so many Land cruisers the surface has become very bumpy (washboard). Cycling over Pang La (5205m) is great. From the north there are 900m to climb in 41 switch banks. From the south it is 1000m in 64(!) switch banks. Atop there are great views of the Himalaya: Makalu, Lhotse, Everest, Cho Oyu!

The climb from Digri to Lamar La pass is quite good. But the road down towards Pedruk is rough with many river crossings - wet feet guarateed! Quite some Tourist Land cruisers on the road.

This pass I have only cycled partly. There is much less traffic here, but the Land Cruisern do it also. Supposed to have great view from the pass.

 

Officialy it is not allowed to go higher up then basecamp (fine 200$). But the controlling officer leaves the place at the end of the saison ( mid of october).