Some jeep support was used on this trip. Mountain Bike trip from Kathmandu, Nepal to Lhasa, Tibet. From Kathmandu to the Zhangmu border takes two days and consists of a 3,000 meter altitude climb over 150 km. Past the border the road continues to climb 60 km to a 5,200 meters pass in the Himalayas. 500 km of cycling on the north slope of the Himalayas ends at the road junction of Latzr, which connects to the Zhongba - Lhasa road.
Food is available every other day.
100's have cycled this road. It is much easier to go from Lhasa to Kathmandu than the reverse because of altitude acclimatization and border crossing problems. In 1987 I crossed with a bike from Nepal, but in 1994 only prearranged tourist groups can enter Tibet from Nepal. Travel to Nepal from Tibet is not difficult and visas are available at the border. Nepal has great food and is cheap and if you made it through Tibet, then Nepal is ia a holiday.