Downhill bike, Freeride Bike, XC Bike, Roadbike?
Lots of suspension, a bit of suspension, no suspension?
Big tyres, little tyres, knobbly tyres, slick tyres?
Lots of gears, one gear, fixed?
Road, Off-road, BMX track, on a wooden ladder somewhere in canada or Bedfordshire?
Fullface helmet and armour, XC helmet and baggy shorts, road helmet and full lycra?
Messenger bag, hydration pack, tubes and energy bar shoved in jersey pockets?

It doesn't matter. They're all good.

Ride bikes, they're ace!

No niches here, if it involves two wheels we'll write about it.