31.8 Stem 35mm 45mm Bike Stems Aluminum Alloy Mountain Bike Short Handlebar Stem for Road Bike MTB BMX Fixie Gear

Bolts don’t line up. You can easily strip your thread and the clamp area is very narrow. I wouldn’t use this for mounting biking. Only for biking around the streets. The quality is terrible compared to a $40 stem.

Wasn't really sure what to expect with the price tag on this. After riding with it, I wasn't disappointed one bit. After taking a pretty good fall on my bike, breaking a bone and requiring surgery, I was even more impressed with this stem seeing as there was no damage and my bars were barely off center. Initial installation was fast and easy and truing the bars after my fall was easy enough it could be done one handed. Highly recommend.

The Boenoea 31.8mm Bike Stem 45mm is the correct stem size that I needed to setup an aero cockpit for a World Record Track Bike.

Lightweight 😊

It seems to be well made. I like both the price and quality. Would recommend.

Bought to shorten the reach of the old stem. Worked fine.

Ok 👌

Tolerances seem good, finish is fine, and held up through some chunky rock gardens. Better than I expected it to be for the price