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Single speed gear ratios

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Single speed gear ratios
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flag stevendh
Posted: Feb 7, 2008 at 12:40 Quote
i wud say 36-16 thats perfect for me
flag noxire777
Posted: Feb 7, 2008 at 18:25 Quote
WasabiJim wrote:
noxire777 wrote:
I did wanna make a new thread so my question is, 32:16 is 2:1 and 28:14 is also 2:1 but do they both feel the same, like are they the same difficulty to pedal?

the difference is in the torque or turning force applied into the drive train. a smaller ring up front increases the leverage of your pedal input – a relationship involving the circumference of the pedals orbit and resisting tangent force from the chain and its corresponding orbit – the chain ring. Think of the sew-saw – small person right on the end can lift a much bigger person if they sit close to the pivot point.

If you keep the gear ratio constant the bigger the difference for example 185mm cranks with a 24 tooth ring (more torque) verse 170mm cranks and a 44 ring (less torque), in theory you should get better acceleration with the bigger cranks with more torque. You’ll have more torque to maintain or increase speed when climbing too while both setups turn at the same revolutions/cadence.

Does that help answer your question? I hope it makes sense.

i kinda understand thanks
flag newbikesoon
Posted: Feb 7, 2008 at 18:42 Quote
32-11 on my hardtail
flag signorvince2
Posted: Feb 7, 2008 at 22:12 Quote
The best way to find out your gearing (with any size wheel ) is to find the gear inches.

Front Sprocket Size x Wheel Size / Rear cog size.

The closer to 56 the better- Lower numbers will be lower gearing, higher will be higher gearing.
flag m3hl
FL
Posted: Feb 8, 2008 at 10:38 Quote
vinceliberatore wrote:
The best way to find out your gearing (with any size wheel ) is to find the gear inches.

Front Sprocket Size x Wheel Size / Rear cog size.

The closer to 56 the better- Lower numbers will be lower gearing, higher will be higher gearing.

the better way of doing is just know that 2:1 is standard for 26"

28-13 is the sma as 32-16 than the higher the ratio the harder it will be
flag cruelty-and-the-beast
Posted: Feb 8, 2008 at 14:16 Quote
I run a 24'' in the rear on a 36-16 chainring/cog... it equates to a 54 or something like that... still a 2:1 ratio...
flag signorvince2
Posted: Feb 8, 2008 at 18:50 Quote
m3hl wrote:
vinceliberatore wrote:
The best way to find out your gearing (with any size wheel ) is to find the gear inches.

Front Sprocket Size x Wheel Size / Rear cog size.

The closer to 56 the better- Lower numbers will be lower gearing, higher will be higher gearing.

the better way of doing is just know that 2:1 is standard for 26"

28-13 is the sma as 32-16 than the higher the ratio the harder it will be

But it is very specific (only to 26" wheels) and doesn't always equate to the proper gearing.

i.e. 28:14 is too low for a 26" (52 gear inches)
flag bikebreaker
Posted: Feb 9, 2008 at 1:07 Quote
I cant believe you are STILL arguing about this! hahaha
flag m3hl
FL
Posted: Feb 9, 2008 at 12:14 Quote
4mr2thc0 wrote:
I run a 24'' in the rear on a 36-16 chainring/cog... it equates to a 54 or something like that... still a 2:1 ratio...

no, it is 2.25:1
flag m3hl
FL
Posted: Feb 9, 2008 at 12:15 Quote
vinceliberatore wrote:
m3hl wrote:
vinceliberatore wrote:
The best way to find out your gearing (with any size wheel ) is to find the gear inches.

Front Sprocket Size x Wheel Size / Rear cog size.

The closer to 56 the better- Lower numbers will be lower gearing, higher will be higher gearing.

the better way of doing is just know that 2:1 is standard for 26"

28-13 is the sma as 32-16 than the higher the ratio the harder it will be

But it is very specific (only to 26" wheels) and doesn't always equate to the proper gearing.

i.e. 28:14 is too low for a 26" (52 gear inches)

28:14=32:16=2:1
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