Members of Half Acre Cycling, with help from CarboRocket and The Sufferfest, will be spending over ten hours on their turbo-trainers to get a sticker and support charity.
The racers will be at Greenline Wheels, 105 S Marion St, Oak Park, IL from 7:00am - 7:00pm suffering, but you can come out between 10:00am and 6:00pm to cheer or heckle them on. You can test-ride a Sufferfest video alongside the knights-esquire and sample some CarboRocket products.
100% of donations received will be used to support West Town Bikes and World Bicycle Relief, both organizations that operate to make peoples' lives better, close to home and abroad.
If you can't make it out, you can make a donation here.