Review on Topeak Fuel Tank: Convenient Charging Cable Hole for On-the-Go Power! by Dan Weeman

I gave this product 4 stars because it's a great product but it's too big and I kept rubbing my knees on it while riding. Luckily I bought both the medium and this large at the same time and can compare them. While I like the large space and I'm sure I can fit more gear, it's way too long. If I wasn't in a very strict form and sitting perfectly upright in the saddle, I would bang my knees into him. This made my 20-mile test ride very annoying. Every time you get out of the saddle to stretch your legs, get over a hill, or to accelerate or stop a turn, your knees are likely to bump. That. If you move the handlebars back and forth (swing) at will, you will get into the bag. The medium size works great. Unless you have very wide hips and want to have your legs wide apart or be in the perfect TT position throughout your ride, never get out of the saddle, never rock the bars, I suspect you're going to hit your knees or feet up a big bag. But the quality is excellent and everything, so I'll leave the average bag.