Trials rider Martyn Ashton (of the amazing Road Bike Party) broke his back in 2013 during a demo at the British Moto GP. He was left paralysed, with a sensory level at T7. Here he is with Danny MacAskill, Chris Akrigg and Blake Samson smashing the trail on a modified downhill bike. The second video is almost even better, a fascinating interview with the man himself that is an absolute lesson in cheerfulness in the face of adversity. Our only complaint is that he still rides better than us, even with only half a spinal cord.