Happy Friday, all. Mad biker skillz.

Via Paul in Montana.
Shell gives away free gasoline on a Spare the Air Day.
Scientific American: City Cyclists Suck In Soot.
Selling bike commuting in Houston, TX.
ZipCar gets stupid; bike nerds respond.
45 day belt drive maintenance.
This just seems odd: Gel fuel recall for burn hazard.
Have a great weekend!