This lies somewhere between Speed and the rest and the Brompton but the Dahon Qix is a 20 inch so it folds bigger. That must be given consideration. The Qix also has the advantage of easier rolling on flat surfaces but it won't help at all in our place where we have to carry up and down stair cases unlike in other countries ramps are made for the disabled. This fold technology was researched for the Jifo and with it's success, they extended it to a normal 20 inch model, hence the Dahon Qix.

I just like the fact that it folds vertical, it takes less space than my former Speed. Eg, in trains, going slightly up vertically actually does not matter but a bigger footprint will. So the Qix has a smaller foot print than other conventional 20 incher. I also take consideration that modding a 20 speed is easy on the Qix. That's my main criteria. Also, next year , I am riding from Incheon to Busan in Korea and I actually plan to stop over in Hong Kong to check out Bromptons ( EPF withdrawal time    )  but if the Qix is OK, with the 20 inch wheels and 20 speed , it would be most ideal. Hopefully, 2 bikes won't weigh above 30 kgs. Maybe I will try to target 24 kgs for 2 bikes!

Suprisingly, the Dahon Qix is slightly bigger in dimension when folded compared to the Dahon Speed. It's a kilo lighter though than the Speed. But if you mod some road bike components on it, maybe you shed another kilo or so. I saw the Jifo before when it was ridden by another rider and was quite impress with the new vertical fold. It looks so simple without much protruding parts of the bike sticking out. Maybe this might make me building the flight case easier later on. Anyway, I have tried the Speed before and maybe I try another. When it hit the store later, I might not even like it, who knows? Then if the time comes, when the Curl is still hard to get, then I will settle for Bromptons from Hong Kong. Used ones that is! I think they are available there. But my dislike for 'B' is the limitation on the gearings. Only way out is the Rohloff but with that you need to change the whole rear triangle which is very costly.

You should see the ride contour of the bike lane in Jeju island, my destination after reaching Busan. A ferry over only. This is the bike lane in Jeju island. Anyway, the bike is not for Korea alone, still I need to ride around Malaysia. And the extra gears are really handy 

I'm also looking for a smaller foot print bicycle. Brompton does attract me the most but the price is too expensive. I was considering Dahon eezz because the foot print is almost similar to Brompton. However, 3 speed gear is too narrow for me. Now with this qix, it seems perfect but not sure how big is the foot print. Is 16" eezz too small? If I'm not mistaken, Brompton wheels are bigger than regular 16"

Paul, all Bromptons are 16" wheels only.

Bromptons are really popular now and surprisingly, used prices are very similar around the world.  You need to be ready when someone sells below market and swoop fast    What happens when you get to HK and not able to get one, how would you cycle to Pusan?

Bromptons, like any foldable bikes, must be ridden within its capabilities.  Only then will you enjoy it.  No point trying to push it up a mountain as you will only frustrate yourself.  So many friends here want to mod to go as fast as a road bike, why? LOL

Yes, it is but if not mistaken 16" also got 2 sizes. Just like 20" which consists of 406 and 451

The 349s will have a bigger range of tyres to suit compared to the 305s, perhaps not in Msia.

The 305s are more popular here to to the fact that it is the same size as those kiddy bicycles. Even that the tires are limited to 1.75 only and those who want 1.5 or 1.25 need to get it with a little effort. Worst still, inner tubes for the narrower sizes are even harder to come by, they need to compress the 1.75 tubes into the 1.25 tires. Cycling has gain quite some momentum worldwide and developed countries like Singapore and Korea (which has almost finished their cycling lanes) got on with it really fast. Malaysia wise can't even give motorcyclist their specific lanes let alone bicycles  Maybe they think 'car free day' is the way to go!