Review on Thicken Aluminium Bicycle Adjustable Bike 27 2Mm by Andrew Young

I ordered a 28.6 mm tube for my child's mountain bike so that the seat can be safely raised. It is excellent. This is an aluminum tube. It is excellent. Not much to spoil, really. The tube has a very thick wall but is still lighter than the short steel tube it replaced. My only complaint is that the integrated seat clamp is just as fiddly to use as the interlocking metal puzzles you see in the Cracker Barrel. I've had this complaint with every other seatpost I've ever swapped a seat on, so I won't put a star on it here.