Cranks? Explain Please.

ulyssesnitrate9 said:

Well, people seem to be talking about various crank lengths and I'm just
curious as to what that's all about? What are the pros/cons of having
longer/shorter cranks?

Longer cranks give you a bit more torque, increasing stability. For
steep uphills and downhills and trials riding, longer cranks are
usually prefered. Shorter cranks are faster however. They are also
capable of spinning much faster for street riding. Many distance riders
and most street riders use shorter cranks.

Thats a pretty brief description, but I hope that helps a little.

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Chexjc

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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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Look at it as the crank being a leaver.

--
wickedbob

R.I.P JOHNNY HART[/B]
[B]R.I.P MITCH HEDBERG

Ducttape said:

not gonna show you it tonight becasue I am going to play with it until I
go to bed to get it just right.........

Here is a picture to show why longer cranks are better for trials.

+-------------------------------------------------------------------+
|Filename: hhhhhhhhhhhhhhhhhhhhhhhhhhhjjjjjjjjjjjjjjjjjjjjjjjjjjjjuuuuuuuuuuuuuuuuuuuuuukkkkkkkkkkkkkkkkkkkkkkk|
|Download: http://www.unicyclist.com/attachment/22100 |
+-------------------------------------------------------------------+

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wickedbob

R.I.P JOHNNY HART[/B]
[B]R.I.P MITCH HEDBERG

Ducttape said:

not gonna show you it tonight becasue I am going to play with it until I
go to bed to get it just right.........

The shorter the crank, the slower the pedal will move at any given MPH.
That means your foot doesn't have to kick as fast, to put power into
the pedal, as it would have to if you were using a longer crank. Of
course, mechanical advantage is reduced with the shorter lever.
It is wrong to think of crank length as gearing. We are stuck in one
gear. So we fuss about crank length, trying to make the best of it.
Sadly, the 10 speed unicycle , or even a 3 speed, doesn't exist.🙁

--
feel the light
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feel the light said:

The shorter the crank, the slower the pedal will move at any given MPH.
That means your foot doesn't have to kick as fast, to put power into
the pedal, as it would have to if you were using a longer crank. Of
course, mechanical advantage is reduced with the shorter lever.
It is wrong to think of crank length as gearing. We are stuck in one
gear. So we fuss about crank length, trying to make the best of it.
Sadly, the 10 speed unicycle , or even a 3 speed, doesn't exist.🙁

*1) *So would that mean that a 175mm crank on a MUni is better then 150
or 125.
*2) *Wouldn't that be a schlumpf unicycle??? 😕

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feel the light said:

The shorter the crank, the slower the pedal will move at any given MPH.
That means your foot doesn't have to kick as fast, to put power into
the pedal, as it would have to if you were using a longer crank. Of
course, mechanical advantage is reduced with the shorter lever.

You seem to be contradicting yourself. If long cranks make you go slow,
then the mechanical advantage of speed is increased with short cranks-
not reduced. It's only really steep hills that short cranks lack
leverage- and a lot of them can still be climbed if you maintain
momentum.

--
Rowan
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schlumpfs only have one gear. Well i mean one non 1:1 gear ratio.

and 175 cranks on a muni would give you loads of control and be easier
uphill and stuff, but you would be really slow.

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brendan

[10:10] Amanda: can i have big [censored]?
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[quote="Hazmat"]*1) *So would that mean that a 175mm crank on a MUni is better then 150
or 125.
[B][/quote]



Well dependent upon what sort of terrain you are riding. It's mostly
about personal preference.


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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

brendan said:

schlumpfs only have one gear. Well i mean one non 1:1 gear ratio.

and 175 cranks on a muni would give you loads of control and be easier
uphill and stuff, but you would be really slow.

*1) *Really, i didn't know that considering you can adjust the speed
and whatnot. Well there you go, i learn something new everyday, 😄
*2) *Yeah i guess, but i think 150s would be a good choice too also.

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