QUOTE(PaulKong @ Sep 3 2015, 11:53 PM)
Hi D3vilsim,
I have a java fit and dahon route which is around the same price. From my experience, java is easier for a beginner as it have wider gear ratio. 52/42 with 11/32 which you can go faster and easier to climb hills.
As for dahon route, the gear ratio of 52 wirh 14/28 is a narrow and you tend to struggle in climbing hills.
I've let my friends who just started riding bicycle to test both bicycle and all of them choose java fit over dahon route.
I like dahon route folding mechanism. It's easier to fold and it feels really solid. The frame are longer and it feels better for me to cycle. I can stand up and pedal with more confidence than java fit. However with such a narrow gear range, it just don't perform as it should be. Unless you upgrade the gear set components. It's like a unpolished jewel.
As I need another bike, I've consider dahon speed but with that kind of price I can get a java IRA 451 cromoly body with carbon fork and comes with 18 speed. Body frame are longer and it's much more stable than java fit.
What beginner need is a wider gear range so that we can cover more terrain. But as your leg gets stronger, you do not need such a low gear anymore. As for me, given me a dahon route, I can climb the same hills with more joy compare to the first time I'm using it.
As for upgrading a dahon to dual chain ring, it didn't make your bike faster, it only makes your bike climb hills easier.
I agree with you regarding the comparisons but folding bikes were meant for commuting and was never meant for long distance touring and also never meant for hill climbing.

Although it is possible and it's a challenge for many to do so, it really doesn't hurt in fact it should be encouraged. Off course, the FIT will be favoured if you test it but that's for the wrong assumption. Just like the Dahon Boardwalk, it uses 52 chainring in the former models and lately they switched it to only 48T. This means the ride will always be lighter and many newbies perceived it as an improvement because it is easy to pedal as it was lighter pedalling effort. What they don't realize it was the gear ratios that made it lighter and the bike moves slower than before. You know 48T , one revolution means 4.36 turns at the rear (let's say if you are using 11T at the rear) compared to 52T which turns 4.72 turns. The figure looks small and seems negligible but when you are doing it 80 times per minute ( this is cadence) that's 28.8 turns per minute and if you ride 30 minutes that's 864 turns that you lost to the 52T crank. That my friend is, ) assuming it is a 406 tire with 1.5 inch width, the circumference of the tire is 1.54 meters, this is per revolution ) 864 turns which means 1.33 kilometers for the same revolution.
Too technical already

My opinion is, it is better to start riding hard and progress rather than start easy and never progress as it will get harder and harder. Eg. in my case, I started on 7 speed. Changed gear furiously when doing Putrajaya Lake 12 km loop. Later started to change less and after 3 months it gear was stuck to 15T at the rear and never changed, then do 2 loops or go over the bridge to the Aquatic Center side to complete 20 km.
Then I moved to triple chainring and it became too easy and started moving to other venues like Genting Perez, Genting Sempah and finally Fraser's Hill. If you start with an 18 speed, you will never increase your pedal effort as the lighter gears are all there. Once you hit a harder slope, the 18 speed won't be enough as you are so used to using it on a flat.
If you are riding with a permanent partner, make sure both bikes are the same specs. This will assure that both will advance equally. if not in later stages , the lesser one will slow down the other.