Mario Kart symbols appear in bike lanes

They have no actual effect on bikes

If you've ever wanted to get to work a little bit faster or maybe give a fellow road user the slip, these Mario Kart power-up symbols that have appeared on cycle lanes in America won't help at all.

But you can pretend they will - making the appropriate Mario Kart noises as you do.

The symbols, which include Speed boosts, banana peels and Starman, have a appeared in Portland, Oregon and no-one knows who the artist is.

Have a look:

Mario Kart will, of course, be heading to the Nintendo 3DS and will feature Tag Mode, where players will be able to share data between handhelds.