Mountain biking to the top

Facing altitude challenges and health risks, a bike team set out to conquer Tanzania's Mount Kilimanjaro.

Wyn Masters takes on the wheelie challenge, trying to ride on just his back wheel as slowly as possible.

Danny MacAskill has single-handedly pushed trial bike riding to new heights of skill and creativity.

Brage Vestavik and Brook Macdonald race 20m cycling only on the back wheel of their bikes.

Journey into the mind and imagination of Danny MacAskill as he plays on giant toys with his trials bike.

Endurance athlete Rebecca Rusch and adventurer Patrick Sweeney cycled up and down Mount Kilimanjaro, Tanzania.

Mountain bike experts Rob Warner and Claudio Caluori go head to head in 20m wheelie race.

Two riders and a mechanic from the Thömus racing team compete to change bike wheels the fastest.

Two riders and a mechanic from Team Focus compete in Val di Sole, Italy to change bike wheels the fastest.

MTB riders Jack Moir and Charlie Harrison race 20m cycling only on the back wheel of their bikes.

Rob Warner travels to Ecuador with rising mountain biking star Finn Iles to take on the Cotopaxi in the Andes.

Go behind the scenes with Danny MacAskill as he hops on his trial bike to explore the lost Argentine town.

MTB riders Joe Smith and Sam Blenkinsop race 20m cycling only on the back wheel of their bikes.