When George brings the motorcycle out of the garage, a group of boys chase a girl holding a dog into George's back yard. Next scenes the dog is not seen again.
When rider number 15 is lying on the road after having been knocked out by George there is a clear splice in the film between the frame of him lying in the road and the next frame where a motorcycle is seen to "fly" over him.
On the ferry to the Isle of Man, Florrie is sewing George's coat after his spell in the Engine Room, she notices a photograph and recognises him as the person who was writing to her company asking to race for them on the TT race. When pretending to tell his 'fortune' using the information she already knows about him, she mentions he rides a reconditioned 1928 Rainbow Motorcycle, when the telegram he received from the company at the start of the film clearly states that they wish him luck with his 1925 reconditioned Rainbow motorcycle.