180lbs Capacity Solid Bearings Universal Adjustable Bicycle Luggage Cargo Rack

First, I will list some shortcomings.1. It does not include instructions, which is well documented. Some people are complaining about this. However, instructions are available online and I was able to install it easily without them. It is pretty intuitive.2. Screws included are good quality but they are way too long. If you do not have much clearance, they might touch the spokes.3. Not much clearance between the seat and the rack unless you move the rack out of the supporting beam. This is a design flaw. The supporting beam should be a little bit longer.Items to watch for:1. Make sure you do not have any brake or shifter cabling where the supportive legs are attaching. This is by design, if you are not careful, it is your fault. Do not blame the product.2. If your seat is pretty high above the wheels, and you attach it to your seat post, it might look pretty ridiculous. Mine is like this. But again, that is by design. If you do not have to use the seat post and have attachment points in the body of your bicycle, you may order a different type.3. Those who have carbon fiber frames should be very careful not to overtighten the clamps. Use a torque wrench if possible. Cf frame owners should also limit their weight expectations considerably since their frame will not be able to carry a heavy load.Pros:1. I had more than a dozen racks and installed many more during my lifetime. This product is sturdy and built heavy duty. If you do not move out the rack to the back beyond the supporting beam, it would easily carry 180 lbs if not more. However, if you move the rack out, then since there is no support below it, the amount of weight it can carry will drop. This is basic physics. Some reviewers are complaining about the rack being bent while they pulled it out all the way. What can I say, of course, it will! On the other hand, all other racks on the market would bend at that point too. I believe this is the most Heavy-duty rack you can buy in the market.If this fits your bicycle, I would recommend it to everyone.