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 Folding Bicycles V6, Folding bicycle discussion

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BOTAK_WAI
post Apr 16 2021, 12:35 PM

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QUOTE(siauann @ Apr 16 2021, 12:27 PM)
chill bro... relax.. i just wanna check if my hub length can accommodate the 11sp cassette or not. if can then i will go for it. if cannot then i will just use 10sp.  smile.gif
and i mention i need close ratio on the high gear. so on the low side if have 30 or 32 will be good for climbing
looking at 11sp - 11, 12, 13, 14, 15, 17, 19, 21, 24, 27, 30
more is always better than less no? so at the end of the day if cannot take 11sp then 10 sp is good enough  rolleyes.gif
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have you think of chainline angle…

sometimes dual chainrings setup will be better.

i have to emphasize again on downsize chainring, if you insist to keep the 52T chainring, of course you need 30T or 32T and more gears to get your so called close ratio on high gear because you will seldom use 11, 12, or even 13.

calculate your comfort gear inches and then you can decide from there which chainring size and cassette combo will be the best balance setup.

This post has been edited by BOTAK_WAI: Apr 16 2021, 12:47 PM
BOTAK_WAI
post Apr 16 2021, 12:50 PM

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QUOTE(siauann @ Apr 16 2021, 12:45 PM)
good u remind me of this. need to reconsider this as well. maybe will affect too much on the chainline angle  hmm.gif
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downsize chainring bro...then only consider change the cassette.

once you downsize chainring then you will comfortable to ride with your 9 speed cassette 11,12,13.

This post has been edited by BOTAK_WAI: Apr 16 2021, 12:56 PM
BOTAK_WAI
post Apr 16 2021, 01:49 PM

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QUOTE(siauann @ Apr 16 2021, 01:20 PM)
currently using 451 wheels and using 50t x 11-32t cassette. cassette size is 11,12,13,15,18,21,24,28,32
i have actually down size from 53t to 50t. maybe need downsize to 48t further? hehe

somehow i felt if i have the extra 14t in and also the extra 16/17t in current setup will helps a lot during riding.  tongue.gif
so far using the 32t climbing is ok. so far have not encounter any steeper hills in my area that the 32t cannot handle.
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if i say 42T will you have a try?

see, you think you feel more comfortable if you have 14T, means 11,12,13 are heavy for your comfortness.

you prefer to have 14T to 17T close ratio because the gear inches is around 65 to 80, that's most people comfort gear inches too on cruising.

in order to ride in the 11,12,13 close ratio range, you really need downsize chainring to 42T.

not sure if you could get 42T easily or not but most 42T is from 52T/42T dual chainrings.

i do have a 41T single chainring, because i can't get 42T so i bought this.

This post has been edited by BOTAK_WAI: Apr 16 2021, 02:08 PM
BOTAK_WAI
post Apr 16 2021, 03:09 PM

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QUOTE(Bujal.x @ Apr 16 2021, 03:00 PM)
42t not overkill ka?

my  15kg minivelo 406 x 2.3 with 46t chainring cruising with 11,12,13t pun feel so light already
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37-451 = 1615mm

46T ÷ 11T x 1615mm x 90 rpm x 0.00006 = 36.5km/h

42T ÷ 11T x 1615mm x 90 rpm x 0.00006 = 33km/h


i saw fb group ppl showing average speed (not top speed) for 451 wheelset max pun around 28km/h je

ride santai at 75rpm
42T ÷ 11T x 1615mm x 75 rpm x 0.00006 = 28km/h dah

This post has been edited by BOTAK_WAI: Apr 16 2021, 03:19 PM
BOTAK_WAI
post Apr 16 2021, 04:21 PM

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QUOTE(siauann @ Apr 16 2021, 04:17 PM)
to be honest most of my ride im on 13t with current 50t. depending on ride style sometimes is 12t and 13t switch a lot between this too. 13t and 15t also switch a lot. thats why i say if i have a 14t will be nice to use. 11t seldom use. sometime doing power sprint i use 11t and ride to the max. with my current cog 15t then towards 18t i think that having something in between will be a bit better which is a 16/17t. thats what i feel la. hehehe...
so far i have not tot of 42t chainring. sounds like a lilttle too small? if i compromise too much on the high then the low gear will be super low?  hmm.gif
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if u scare too small then 45t or 46t lo…
fyi…number of teeth of cassette makes more difference lo…
chainring u need 4 teeth only can feel the difference
44t also harder to get, mostly from brompton

This post has been edited by BOTAK_WAI: Apr 16 2021, 04:24 PM
BOTAK_WAI
post Apr 16 2021, 04:29 PM

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QUOTE(siauann @ Apr 16 2021, 04:25 PM)
okok.. will take into consideration on this setup... thank u for the info  thumbup.gif
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i feel that most ppl very hesitate in downsize chainring.

downsize = weak ?

i have been this scenario…downsize chainring to get faster average speed.

right combo of gear ratio is so comfort to ride and tackle your usual route even has to sacrifice some top speed.

This post has been edited by BOTAK_WAI: Apr 16 2021, 04:31 PM
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