THERE'S just something about cyclists.

The tight nylon outfits, the unrelenting dedication, and the anger, apparently.

Some amazing footage above, caught on a camera attached to the victim's helmet, shows one man fly off the handlebars at a fellow cyclist.

Rider number one takes umbrage at a comment from rider number two - who suggests he was rude to take up all the space on New Zealand's Flying Nun trail.

A heated exchange turns physical, and things get worse when rider number two says: "that's assault, mate".

But wait, there's more. When R2 reveals he's wearing a camera, things get all sorts of crazy.

Why can't everybody just get along?