What's the difference between a dressed man on a unicycle and a naked man on a bike? Attire.

A friend of mine works for a company that makes bikes..... He's their Spokesman.

Why are tyre tubes so expensive these days? Inflation.

Why don't bank tellers ride bikes? - They tend to lose their balance.

What do you get when you cross a bicycle and a flower? Bike petals.

What's the hardest part about riding a bike? - The road.

If someone is riding faster than me, I assume they aren't going as far.