You read that right. Tucked between the toilet paper and pool noodles, and across the aisle from the frozen food section, we found an indoor trainer. Those of you familiar with the discount supermarket chain, Aldi, know that you can never be certain with what you’ll find, but even within that context we were surprised to stumble across an indoor bike trainer in a grocery store. So we did what any curious person would do in that situation: We sent one of our editors back to the store to buy it. Equal parts bemused, skeptical, and downright curious to see how well or even if it would hold up—or what it would look and sound like if it failed—we put it to the same test we do all our indoor trainers. (We tested a lot of trainers this winter, ranging from $300 friction trainers to $1,400 smart trainers that do everything except pedal for you.) Only this time, we filmed it. After all, if this trainer was going to blow up in spectacular fashion, we didn’t want to miss out on the opportunity to capture it for all to see. I’ve always wanted to be part of a viral video, so I raised my hand to be the guinea pig. In the box you’ll find a trainer skewer, a riser block for your bike’s front w...