The bearings and larger diameter than the stock Brompton wheels mean these wheels roll really well. They seem to be well made. I do wish they were a little wider. The thin wheels do look cool but they get stuck in cracks on the ground. My second gripe is that there isn’t much rubber on them. Only time will tell but I imagine that they’ll wear down pretty quickly.

Product arrived quickly and in good condition. They seem high quality and look great on my bike.

I bought these to replace the original Brompton wheels to make it easier rolling around the bike while in “cart mode,” aka partially folded. It turns out that these raise the center of gravity enough to make it far easier for the bike to tip over if there’s any weight in the front bag. You may not have the same issue if you have a rear rack.

Thewe work better then the stock ones that came with the bike

I have an M3R Brompton that gets used for commuting. I need to ride to the train station (1.5 miles), take the train into the city, then commute 4 miles to work. I unfold/fold it multiple times a day (from home, onto the train, off the train, at work, from work, onto the train, from the train, at home).Part of my transit time includes walking about 1 block down a train platform and through the Chicago Board of Trade to get to the street. Because of crowds and needing to use an escalator, I keep my bike folded until I reach street level. The original wheels have worked okay, but after several years of use for this commute, they were wearing out. I also have been frustrated by the tippy-ness of the bike when rolling through crowds. So I upgraded to these wheels plus the extender bar.The only problem is that the extender bar works off the "wrong" end of the bike rack for me. It works when the bike is in "shopping cart" mode with the handlebars up and the bike getting pushed. That is not how I need to use it--which is as small as possible, dragging along/beside me, pulling on the seat with my fingers in the little grab spot. I'm not totally upset about this because I do still use the bike in shopping cart mode at times, and the extender bar definitely stabilizes the bike. However, it was clear that the wheels I needed were not part of the original replacement purchase I made.These are a match for the pair that I got with the extender bar. They are attractive wheels that look better than the original easy wheels from Brompton. They are also lighter. NOW, my bike rolls beautifully when I have it in a full fold. The wheels are slightly square v. the more rounded profile of the easy wheels... that little bit of extra real estate actually makes a difference in stability. I also like the fact that the wheels now match all the way around.These were easy to replace with my Park Tools MTB-3 Rescue tool, which has both the allen wrenches as well as box wrenches. The box wrench is super handy for holding onto the nut as you release (and later attach) the wheels.Pro tip: Both the Aceoffix and the Brompton Easy Wheels have some side-to-side play in them. You correct this by adding washers to the mounting bolt. The wheels do not come with washers, so you will need to purchase them separately or scavenge them from around the garage. I used one on the inside and one on the outside of the Aceoffiix wheels, which kept them from wobbling at all. Another tip: don't over tighten or you will lock up the free rolling of the wheels. This is true for the Brompton easy wheels as well.EDIT on 3/23/21I've been using these regularly now for a few months. I have one problem... and with just one wheel, so maybe it's a defective wheel? On 2 different occasions, the rubber has jumped the rim on the wheel causing the bike to roll directly on the rim itself. The 2nd time happened when I was rolling it down a hotel hallway on carpeting. I think the rubber got rolled off as I was making a turn. The first time this happened, I don't know what was the cause. I noticed that the wheel was making a weird noise, looked down and saw the aluminium rim scraping across the tile floor at work. Both times I was able to stop, flip the folded bike up and replace the rubber, being careful to seat it properly. Fingers crossed that this does not happen regularly. I'm considering adding some E6000 and glueing it down.