Well made nicely finished product. Sadly about 1mm too small to fit - but - had it been ok I would have been happy to use it.

It was exactly what I needed.

Functions as advertised and helps steady the bike when the bake wheel is flipped under.

Zur Stabilisierung bei rollendem Transport meines gefalteten Brompton grundsätzlich sehr gut, insbesondere wenn meine Tasche am Rad eingehängt ist.Leider ist die Konstruktion mit kleinen Madenschrauben nicht optimal. Denn diese hielten der Belastung nicht ausreichend Stand.Mehrfaches Nachziehen war die Folge, was das Material verformte. Ein dadurch notwendiger einmaliger Tausch der Made war aufgrund des mangelhaften Gewindes auch nicht mehr möglich und zudem verlor ich ein Rad. In Summe gerade ein Jahr lang leidlich nutzbar...

I originally gave this 5 stars because it looked nice and felt good when I first fitted it onto my brompton and hadn't put it to the test.This bar is actually just garbage. I've been using it on my Brompton for the past week to commute and everything about the part has failed on every level.First, the extension bar bent within the first two days, making the telescoping action extremely difficult if not impossible.Second, this piece is too large to properly fit onto a 2021 Brompton. Even using extra washers to fill in the gap, the slightest gap makes this thing come loose and fail. It caused damage to my bike. Absolutely unacceptable.Finally, the actual piece twisted out of shape from the strain of using it for JUST A WEEK. I can't even fix it because the part itself is ruined from just mild commuting. Absolute trash. Don't even bother buying this. You get what you pay for.

Funktioniert nicht. Lässt sich mit den Schrauben für die Räder nicht montieren und steht eh zu weit ab, so dass man mit den Füßen daran hängen bleibt, was sehr schmerzhaft wäre. Schlichtweg eine Fehlkonstruktion.

Macht soweit einen ganz guten Eindruck und lässt sich einfach montieren. Allerdings hat man davon leider nichts, wenn der Auszug sich während des Fahrens alleine ausfährt. Fragen an den Verkäufer blieben unbeantwortet

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 (see the attached photo). 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 directions for mounting the extender bar weren't the best, but by setting up my iPad next to my bike and referencing the photos from the purchase page, I was able to figure it out. Make sure that you work out which side extends before you mount it! The side that slides out is mounted toward the gear side of the bike (You can see this in my photos attached).I do have an issue with the product, although it has nothing to do with the quality of it (which is very good). For me. the extender bar works off the "wrong" end of the bike rack. 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 for my commute--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 and the extender bar that I wanted--which would help me roll the bike when it is in super compact mode--were not part of the original replacement purchase I made.I have now added a second pair of wheels which 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 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.