Are you bored with biking?

[Busa]

Then use the engine in one of these

 

[Bat]

That's immense

 

[xb8browney]

Looks almost uncontrollable.

 

[Busa]

Tyres probably dont last long either!

 

[The_Abyss]

He really nails it at about 1.15 - must get up to a speed that must be genuinely terrifying...!