I've heard mention of some Brompton clones/copies (and others that have a similar folding mechanism), and I thought it might be a good idea to put them all in one thread so others would have an easier time getting information about them.
I've separated this listing into two sections. Pure clones and the others with a similar
Clones & Copies
Merc (produced by Flamingo/Gallant Grace): http://www.mercbike.co.uk, http://www.flamingobike.com
Merc/Flamingo bikes are available in the UK through Merc Bike. However, there appear to be issues with the website and the best way to get one appears to be to contact Merc through their eBay store (http://stores.ebay.co.uk/Merc-Folding-Bike-Spares). Merc will ship to the US, but cost may be prohibitive with current exchange rates.
Flamingo may export to other places, but there is currently nothing confirmed beyond Merc in the UK.
Many Merc owners feel that the bike is very close to a Brompton... down to being able to use parts interchangeably.
Scoot: (placeholder for website)
I've seen Scoot mentioned along with Merc, but I haven't been able to find anything concrete about it. If anyone has links or info, please post it to this thread.
Neobike: http://www.neobike.com DISCONTINUED
Neobike was a Brompton licensee for the Asian market. The license was pulled in 2002, but some of these bikes still pop up for sale. If anyone has more info about Neobike clones, please post it to this thread.
Mezzo/Ori: http://mezzobikes.com; http://www.oribikes.com
It would probably be more fair to say that Mezzo is trying to copy Birdy (see below) as the only thing it borrows from Brompton is the rear wheel fold. You can mainly find Mezzo at retailers in the UK and Ireland. Some retailers will ship to the US, but cost may be prohibitive with current exchange rates.
Ori Bikes is the Taiwanese manufacturer for the Mezzo bike. In an interesting twist, Ori is now making their own line of folding bikes based on the Mezzo, but with a slightly different design. Again, the bikes are more Birdy clones than Brompton. But they do have that rear wheel fold under design that makes for a relatively tight package.
Birdy is a high-end folder maker from Germany. These bikes can be found in Europe and the US. They feature a unique suspension and very high end parts. The only similarity to the Brompton line is the rear end fold. If anyone wants to add anything about Birdy, please post it to this thread.
Breezer/Mission/Oyama: http://www.breezerbikes.com, http://www.oyama.com/products.asp?le=english&fid=104
Breezer, like Merc, imports a Taiwanese bike. However, the manufacturer is Oyama instead of Flamingo/Gallant Grace. The Breezer/Oyama line of bikes are not exact clones of Brompton. However, they do use a similar folding scheme. The bikes are heavier than most in this range. Breezer is imported into the US.
These bikes are imported into the UK by Mission (http://missioncycles.co.uk) as the Space Genie. These appears to be the cheapest Brompton-like bike out there. Beware the weight however... not exactly portable. It has also been noted that these bikes don't fold as small as Brompton/Merc, but honestly, is there anything that folds that small?
Go Bike: http://www.gobikeonline.com/
Go Bike is a Canadian company that makes a very nice looking folder with the Brompton-style rear wheel fold. I'll do some research to see what others have said about it. If anyone has any thoughts they would like to add, please post them here.
Dahon Curl: http://www.dahon.com
Dahon is, of course, the largest folding bike manufacturer we know of. They make a wide line of products. The Curl appears to be their first attempt at a Brompton clone. It's not exactly a clone, as it appears to trump the Brompton on folded size with an evolution to the frame design. This is not available yet, but we hope to see it in the next year.
Bike Friday Tikit: http://www.bikefriday.com
Bike Friday is a leading maker of folding bikes. Their bikes tend to be in the packable end of the folding bike spectrum. The Tikit is their first foray into a truly compact folding bike. The bike folds under in the rear like the Brompton, but that's where the similarity ends. The rest of the bike couldn't be much more different.
That's all I have for now. If you have more info, please post it and I'll update the top entry.