Nah... Just add a front derailleur, shifter and dual crank and probably a diff chain. Voila, 7 speed becomes 14 speed. More gears for hill climbs!

That's adding a smaller chain ring to reduce gearing to go uphill. More speed you need a larger chain ring. More gears doesn't mean higher speed, you just have more ratios, maybe the ones you don't need.

More speed means you have more gear ratios to play with, but depending on what chain rings and sprockets are in that 21 speed, it may have too many low range and not one high enough for decent speed. 21 speed will probably mean 3 in front and 7 at the back. Im sure being 7 speed at the back means it is unlikely to be a cassette type cluster, means cannot upgrade if the ratios are wrong.

Also more gears doesn't mean smoother gear changes, it depends on the quality of components.

These are all based on my experiences.

Go test ride the bike. If the speed that you get from the gears are satisfactory FOR YOU then very good!!!

This post has been edited by desastar: Jun 6 2014, 06:10 AM

That's what i said, didnt i? More gears for hill climbs!

Anyway most foldies front crank runs at 52T or 53T. With a dual crank perhaps one can opt for 43/56T and there u get the benefit of running higher speed gears on top of low gears for climbs

i understand gears and ratios u guys mentioned~~~

Just dont understand when u guys start mentioning terms like

Cassette type cluster...cranks~~and no idea what a front derailleur does >.<

Anyway i will google it

Cassette VS Freewheel

This post has been edited by terryble: Jun 6 2014, 09:55 AM

You are right, but I was referring to bikes with 7 speeds and like the one I had previously, the front crank was 48t.....so you can imagine what top speed this will give you, lol !!

That's it!

I've learnt the hard way ..... after $$$ spent, lol !

Not so much the different type, but Freewheel has very few options as they are no longer popular.

This post has been edited by desastar: Jun 6 2014, 10:32 AM

Any good cheras bike shop selling shimano part?

We have our 6 speeds folding bikes with the following gear inches and range:

Setup 1: 33.1 - 100.1 GPI with 302% range
Setup 2: 35.8 - 108.1 GPI with 302% range

Honestly for folding bikes i don't think there's much use for 3 chainrings at the front. 3 chain rings would be something like 24T smallest? I have 24-34-44T on my 26" foldie and I have never even used the smallest one before, middle chainring 34 with rear cog 32T is already super light and I've used that only a handful of times at extreme hills like Bukit Cahaya.

With a 20" wheel and 24T front chainring you'll pedal like mad but the bike will hardly move, if that's the case you're probably better off getting down the bike n push

Get something with 2 chainring max is enough. If u're ok with 1 chainring even better, less weight and less complications

This post has been edited by 180jin: Jun 6 2014, 02:35 PM

Spinning like a hamster in the cage ....javascript:emoticon(':cool2:')

hi everyone, I am a newbie for folding bike. Just bought my dahon broadwalk lately and mind to share ur opinions for helmet pls. I am looking for 1 now. Can I know which brandname is good and which retail shop to buy?tq in adavance

Haha, I dare say that on the flat you will still be spinning using the 44T !

302% range is quite decent, but having only 6 gears mean there is a big jump between gears, so harder to find the right gear to keep momentum going.

So far we are having great fun with the setups. May consider a 9 speed option but the upgrades gonna burn a big hole in our cycling pant's pocket.

on flat 44x11 on 26' wheels where got spinning....?

There is a sale in 1MontKiara. Tern Link Uno RM930 (actual rm1860). Dahon Speed P8 is RM1699 (actual RM1999). Dahon MU P8 RM1954 (actual RM2299).

I just got myself a Link Uno.

which shop in 1 monthkiara? how long the sales?

It's like a roadshow, by Rodalink. It's at ground floor. Also saw other foldies like Java, XDS etc and MTBs. The roadshow is from 6th to 15th June.

This post has been edited by ViRaViRa: Jun 7 2014, 11:13 PM

oh thanks! will check it out tomorrow