Review on Topeak Beam Rack Bicycle Type Sports & Fitness in Cycling by Mark Hanson

The product is excellent! It will not move when properly tightened. I bought type A because it is designed for smaller frames (I have XS). However, when using this item with the trolley folding basket folded, the basket handle hit the back of my seat. If you're short like me (and your seat isn't high enough, the basket or bag may not fit under the seat as intended and will come into contact with your seat. I switched it to Type E and it seems clear that Wheel AND sits far enough under the seat that I have no problems with the basket handle.I have used this frame to go to the grocery store and pick up groceries and have had no problems moving it around.Highly recommend.