Review on FOMTOR 31.8 Stem - 60mm, 70mm, 80mm, 90mm - 7 Degree - Lightweight Bike Handlebar Stem - Suitable for Mountain, Road, BMX, and MTB Bikes by Brion Pine

Installed on a Wahoo Kickr Bike indoor trainer. The simulator stands on a level floor, the steering column is vertical. This stem has been measured to have the handlebars tilted approximately 1 degree from horizontal. Although this slope may seem small, you can notice a noticeable difference in height between the left and right ends of the handlebar across the width of the handlebar. It shouldn't be like that. I don't want to sit crooked on a bike (or machine). I think you get what you paid for. Lesson learned. Typical Chinese brand of inferior quality. This stem is sent back to me, I ordered a replacement, this time from a bike shop.