ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium

This is a great bicycle bag. I have three different bikes and have this bag for every single one of them. Some of my bags are over five years old. They are still like new and used a lot. I highly recommend this product. The zipper has never broken. The material has never faded and it is the perfect size for a couple of credit cards your cell phone, money and lipstick.

I am upgrading my review again to 5 stars. I originally had an issue with the zipper sticking but it was easily fixed by rubbing (of all things) Carmex along the zipper path. I have had the bag for 2 years and nary an issue since. I highly recommend this bag. It has stood up to heavy gravel riding, the weather and the test of time.Original 2 star review:"I was looking for a top tube bag a little bigger than the last RockBros bag I bought. This one works great. Just the right size, fits on my gravel bike frame fine, but . . . the zipper is really hard to open and close. My other bag doesn't have this problem."

I was thrilled to finally get this because this type of bag is the only type that can actually fit on my MTB without it getting into the way. I can't have a saddle bag because I have a dropper, and when I drop my seat all the way, it gets really close to my rear tire, which will then rub when I'm on some narly techincals. Then my bike geometry is in such a way, I can't put one in the bike triangle..... since my shock gets in the way. Thus, this seemed like the perfect solution. To be honest it mostly works but I do have one gripe...PROS:- Large enough to put a ton of things in but not so large that it looks like a hiking back pack.- Good solid material. Took on rain and mud and it held up.- Solid velcro straps. They strap and don't come lose.CONS:- This is where I'm bummed. While the straps are great and keep it in place (mostly), the bottom strap, that straps to the top tube is not very well designed. The strap itself simply slides through a couple of slits on the bottom of the bag, which means, it slides around. Even with the strap tight and firm in place, with just enough force, you can shift the bag left / right. I experienced this on every ride thus far where I'd make sudden turns, or quick endo's , or take really fast burms.... think of the effect of a Centripetal force. So what happens basically is the bag is now greatly shifted to one side off the top tube, which causes to slighly slag downward, which then gets bumped by my knee. Sucky!

Nice size, fits phone & a few other smaller items. Attaches well to top bar. Will come in handy for bike trips.

Bought medium size to pair with a seat bag. I use the seat bag to carry most of my emergency repair equipment so was looking for another bag to fit other items. Was able to fit cash and credit card/ID, mobile charger and charging cord and other smaller items. Don't need it for my phone, but seems like I would be able to slide mine in bag if necessary (newer iPhone). Sat out in a small rainstorm during a ride and seemed to keep everything dry. Fits cleanly on tube of my bike and doesn't shift much if at all while riding. The straps are a little long, but I just tucked them through the loops or you could probably cut them down. Wouldn't use this as my primary bag, but a perfect complementary bag.

I've bought this bag twice: price+size+materials works perfectly for me. All looks good when the bag is new, including the zipper.But the zipper pull is made of very soft metal (not like a YKK zipper). When the zipper broke on my first bag I thought it might be my fault, ie., cramming too much in. So for my 2nd bag I always closed the zipper with 2 hands - one to squeeze the bag closed and one to zip - and I never overfilled. I was able to fix the 2nd zipper pull with my multitool, only to have it break again. The metal on the zipper pull is much easier to bend than a quality zipper (this also makes it easy to fix), but the metal also quickly fatigues and breaks (alas, the fix does not last).It's time to try another brand - the price is simply not good enough to buy a new bag every year! Meanwhile, all three of my Rockbros roll-top bags remain in service after many months bikepacking in Patagonia, Utah, Alaska!Rockbros - if you are reading this - please, please put a better zipper on this and I'll be back!

The bag is very narrow, sleek and attractive on the top tube, I chose this bag specifically because I didn't like the other bulky options for top tube bags, but it comes at a cost, you won't be able to hold too much in it... in the small size I bought at least. For my purposes it's fine, as I just wanted something to hold some money and my sunglasses, and maybe even fit a snack bar in it, but not much else will fit. Without the sunglasses I can put some keys, a tire patch kit and a couple of snack bars, or able to fit a bike tube in it which would take up most of its space. The bag sits sturdy on the top tube with its 3 velcro straps which was a simple install. I can't speak much for how water resistant it is as I didn't test that. I like that the bag have a kind of semi hard shell that holds its shape and not floppy and cheap looking. Overall I am pleased with this bag.

Fantastic, used it for my half Ironman, it was a game changer