Other than cycling..... Just a few....
Motorcycles and mopeds (I particularly like taking old ones that look like scrap and making them do stupid speeds, sleepers)
Shooting air rifles (i mainly shoot targets though)
Vehicle detailing, im quite obsessed with keeping vehicles clean, have been known to clean a motorcycle engine with cotton buds
I make videos sometimes but never post them to YouTube. Its mainly timelapse stuff and footage from helmet camera when out on motorbike.
Mixed Martial Arts
Welding (After years of only doing MIG and arc i think ive finally mastered TIG)
and much to the annoyance of er indoors i like big expensive shiny vans