considering to buy java fit...
but the lbs said there will be new java release ...
is it?

OK I will clarify . If your crank and chainring has 5 Allen bolts on it, then you just buy a 39 or a 42 smaller chainring and bolt on it. You don't need to change the bolts but you will have to discard the bash guard. The bigger chainring will sit on the the bash guard's place and the smaller chainring on the original chainring place.

Other than that is off course the shifter and the FD plus it's adapter . Then there's the cable and housing.

Oh dear, I like having the bash guard! Is it possible to get longer bolts and maintain the bash guard and have both chainrings? Sorry for asking so many questions. Thanks again etigge!

There are 2 ways about it. One is off course add an extra or two chainring and go through the whole FD and adapter process. Other than that, you can also just upgrade straight to 10 speed which gives a 36 cog maximum at the rear.

If you adjust the chain carefully, the cage will be pulled to the front on the 36cog setting so it won't hit the ground. When you do this, you have the advantage of modding to 20 speed later if you still find it insufficient low gear.

Just go to BBS site and hunt for mob parts. I modded a Vybe C7s the other day with a Deore shifter and it was perfect.

PS/another way is get a smaller chainring but at the expense of speed at the highest gear.

This post has been edited by etigge: Jan 22 2015, 07:18 PM

Yes, you can. There are longer bolts with spacers for it. Come to think of it, I do have a set of it. PM me if you want it. Problem is, just maybe , the position of the inner chainring a might be too far in if you use the spacers and to remedy this you need a BB with longer spindle which is so hard to find, especially the 128mm ones. Another solution is to add spacer to the BB to bring the spindle further out.

Hi all sifus....2day as i rode my mu n notice dat while riding on it if i try to pull or push d handle theres a "squeek" sound....does any1 hv tis problem on their dahon bike b4..... how can i diy to fix d problem or should i send it bek to d shop as its still warranty....
There another problem w another vybe bike too same area but handle fells thight to turn either left or right....
Hope u can give me some advice....tq

Wee... Thanks for the enlighten sifu!
U do modification as well? Maybe can help me out to upgrade to 20 speed then..

If it is under warranty, take it back. Why touch it yourself?

Sounds like the head bearing too tight anbd not properly greased? The original bearing is not that great anyway.

Thanks for your kind offer but wow sounds really complicated about the BB thing! I'm in no rush to get the second chainring. Probably only later this year, just wanna find out more about what are the most cost effective options.
I'm sure there are ways to settle the BB issue though

I have tried using normal mtb sealed bearing and it can be used provided you use the original headset cover from the old one. You need to changed the crown as well. Taking out the crown from the fork is a bit tricky though without a crown ring remover.

Sifu, you are right. When I had to remove the crown last time, i was scratching my head wondering what to do. I finally used a carpenter's chisel and slowly tap tap tap until it lifter off the base. This is caveman at work, hahaha, no special tool available, so just use what I have.

Hi all,

I need guidance here.

I have an upgrade target for my Vigor P9, eventually having either 18 or 20 speed.

But I like to do it in stages, first changing the RD shifter, then RD, then adding 2nd chainring and FD.

While upgrading in stages, I also don't want to change the upgraded component as I go. For example, I want to change my RD shifter first, so I need to make sure the RD shifter I get will be compatible with all future upgrades of other components.

Therefore, I have questions as follows:

1. Will a 10 speed shifter, say a Shimano Tiagra 10 speed shifter works with my current 9 speed Neos RD and 9 speed cassette?

2. Will a 10 speed RD & shifter, say a Tiagra 10 speed shifter and RD works with my current 9 speed cassette?

Thanks in advance!

The stock Vigor P9 cassette is 11T/32T, just for your information if it matters.

This post has been edited by whateva2k: Jan 23 2015, 02:34 PM

from guan chows' website...

http://gccycle.com/index.php/product/dahon


if the only dahon which has double crank is the 2015 dash

isn't it stupid?

since more than 4 years ago, when dahon is getting popular here,

the distributor lerun refuse to take in

bikes which has more speed and normal folding bike frame,

ie vitesse p18 etc,,

until last year? finally visc p18... which is the fugly version

now tarak liao??

so sure loose to those java etc etc .....

This post has been edited by H2D: Jan 23 2015, 02:50 PM


Attached thumbnail(s)

new user with raleigh ugo report in

might consider to buy child seat, rear rack where can i get those part ??

if i put front rack, it is looks like aunty's bike??

Best to save your money and then do the whole upgrade in one go. Why? all the compatible components are installed at once and the whole thing is then tuned to operate smoothly.

I don't think the Tiagra 10 speed shifter will work with the Neos 9 speed RD. Tiagra 10 speed RD short cage will not work with your current cassette.

True..all dahon models has single digit speed except the dash. Upgrading is seriously a headache unless you a pro..i think will also void the frame warranty. I am also very confuse with their color choice for the dash

I can understand the reason for upgrading in stages as I did the same. It is easier to actually get a high spec bike slowly as what I wanted will cost 6k if I choose a Dahon with the specs.
Sadly, you can't upgrade the way you mentioned as Tiagra 10 speed shifters are not compatible with a 9 speed RD. If you want you have to get the whole front modded and then the whole rear modded at once.
So I can suggest going for 9 speed.

That way. You first buy a 9 speed shifter, bear in mind, SRAM and Shimano are not compatible. Also road bikes and mtb has different shifting index length. If you choose Tiagra or 760 shifters, these are road bike flat bar shifters so mtb RDS are not suitable. But if you choose mtb shifters, you can use road bike RDs as long as your cassette don't exceed 30 teeth as roadie RDs has short cage.

So start with say 9 speed Alivio or Accera shifter. That way you can still use the Neos RD and then later change the RD. Then later add a chain ring to the front. This way if you ride hilly area, just shift the chain manually by hand to the smaller chain ring. Then later the FD and adapter and finally you have 18 speed which is sufficient for Fraser's Hill if you are on mtb set up at the rear. The front is always roadie 53/39 set up.

Sifu etigge is the technical expert, a "school of hard knocks" graduate, ie from experience instead of theory. I enjoy learning from him face-to-face when I need his help to upgrade. Hopefully, all the active forumers will have the opportunity to ride together, share personal experience and discuss upgrades over a teh Tarik session.

After all, big boys do need new toys every now and then ! Hopefully, we can control the CBBD syndrome (Compulsive Bicycle Buying Disorder) or our other half will be screaming their head off !

not all dahons la.... '

anyway guan chow said dash D18 oni in may this year, n visc p18 oso later this year.....