If you spend a lot of your day combing through stock photos, you start to see trends. One trend I've recently noticed: None of the women represented in stock images knows how to ride a bike.

Bike helmets are, for bike-wielding kids with only a rudimentary understanding of their own motor skills, a necessary form of public humiliation Even really sleek, Tron-looking bike helmets are humiliating (and uncomfortable) to strap on, and, for a kid with a bike, the first true act of childhood rebellion is…

Yay! Bitches can ride motorcycles in Saudi Arabia now, because the Kingdom of Saudi Arabia has lifted the ban on women driving motorcycles and bikes. The new religious laws allow for women to ride these two-wheelers in parks and "recreational areas," but still requires them to wear a full, head-to-toe abaya while…

Are you in the market for a super hipstery bike that you can probably barter for? Of course you are! This ad features the bike of your dreams but I'd hurry — I can't imagine that a gem like this has a very long craigslist shelf-life.

The tough leather jacket in this ad for Huffy Bikes reads, "Eat My Dust Bunnies." It's one in a series of "Moms On Bikes" ads; the other reads, "Rebel Without A Minivan." Cleaning and carpooling: What women are all about!

Insert some joke about how mom always said to wear clean underwear in case of an accident... These seat covers were a promotion by an Amsterdam lingerie store; they should stay clean for at least one commando ride.

George Bliss, who owns Hudson Urban Bikes in a posh part of New York City says of women: "They are my best customers."

[London, July 30: A woman enjoys the new bike-rental system. It is hoped that the flagship cycling scheme will help build on the growth in cycle journeys taken on London's major roads. Image via Getty.]

who loves barreling down the bike lanes of New York City. [NY Times]

The Vah-Genie, a crocheted vagina bicycle seat cover sells on Etsy for only $45. There's a bonus — the creator notes, "So far, I have had no reports of cover theft from users." [Regretsy via TresSugar]

"Marie Glory, a well-known Parisian bicycling enthusiast" with a huge amount of time on her hands, anticipated Ready-Made by about 60 years. [ModernMechanix]

Because that's where cycles go… er… come from. [Vintage Ads]

[Toluca Lake, August 13. Image via x17.]

[New York, July 11. Image via Bauer-Griffin]