QUOTE(sepat @ Mar 14 2014, 07:12 PM)
i get the idea.. i thought that as well since my ride most of the time will be on flat road .. having said that .. speed is something i need to consider too.. well.. i am quite new in this hobby but appreciate your explaining then ..
anyway upgrading crank set will increase the speed to how many % from the current anyway? just upgrade the crank and the rest maintain in oem condition will do? correct me..

if I am not mistaking.. you are riding a Dahon Vigor P9..
the front crank is already 52T..
if you want more speed.. you can change the rear gear set to road..
then come again.. why do you need to cycle sooo fast..
as we al know.. foldies are meant to makan..makan..and jalan..jalan..
as for fitness sake.. like me..
I choose single speed so that I can cycle more faster if I need speed..this will make my heart pump faster..
if I need to climb (only on moderate slope ) I just have to train harder so that I dun have to push my bike and been tease by my friends..
if I really need speed.. I will ride my MTB with sora cassette..
during my school days..me and my friends used to cycle round Penang Island with only 12speed racer.. for me if I can do it then..I think I still can do it if I train hard..