Review on 🚲 VUP Bike Front Frame Bag with 360° Rotation Phone Holder for iPhone 12/Pro/Pro Max/Mini/11 Pro/XS Max/XR/X/7/8 Plus, Universal Bicycle Handlebar Bag for 4.0''~6.7'' Cellphones by Edwin Kreps

I bought this bag for my Giant Defy bike. The bag is well made and has great features, I just wish it matched my bike better. The problem is the strap that runs under the bike's top tube. This is regular Velcro that attaches to the bottom of a "saddlebag" and then goes through a plastic ring on the bottom of another saddlebag and folds in half. That would be great if you had a really big top tube, but the Giant Defy has a small diameter top tube. When you try to tighten the strap, the bag looks like a giant triangle (the flat top of the top tube and then the two saddlebags touching a few inches below the top tube). Since the saddlebags are touching, the velcro is useless as it has nothing to fasten to. If I try to let the saddlebags hang vertically to allow the strap to roll up, the bag will be so loose that it will move from side to side. Bottom line, the bag is really unsuitable for the bike I bought it for. Still, I keep the bag. I'm buying an e-bike for my wife that has a completely different frame design and I think this bag will go well with that bike. This is a really well made bag and I love the features. I just wish it had a different way of mounting under the top tube so I can use it on my Giant Defy.