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Single speed gear ratios

PB Forum :: Dirt Jumping & Street
Single speed gear ratios
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flag jim-kaplan
Posted: Dec 5, 2007 at 14:16 Quote
hey, im thinking of building a street/park bike and i am thinking of having a 12-23 ratio. ihavent seen any street park bikes with that small of a sprocket up front and was wondering if there was a disadvantage or if gearing is just a personal preferance.

thanks
flag hung-l
Posted: Dec 5, 2007 at 15:07 Quote
I run 24-14. It's quick but not fast. I do a lot of park riding so it's not too bad.
flag neon-freerider
Posted: Dec 5, 2007 at 15:16 Quote
I run a 32 16, runs nicely
flag k-m-z
Posted: Dec 5, 2007 at 16:11 Quote
if you run 3 piece go 25-12 its the best and lightest
flag downhilldrew01
Posted: Dec 5, 2007 at 16:52 Quote
25 - 9 but i used to run 32 - 15
flag cruelty-and-the-beast
Posted: Dec 5, 2007 at 16:54 Quote
A 2:1 ratio is usually best. I run 34:16 pretty fast, quick acceleration, all around good for cruising.
flag
Posted: Jan 2, 2008 at 12:57 Quote
take any bmx set up... 25-9, etc... and ad a tooth to the back making it a 25-10. it evens out mathematically.
flag jamiejamiejam
Posted: Jan 2, 2008 at 13:02 Quote
read the rules of the forums. ive already made a post about this a while ago. read the rules before you start posting threads.

and because none of you know what your on about..

take your front chainring teeth size divide it by your rear sprocket teeth size and times it by your wheelsize. a good ratio is 55.
flag mikedjumpin
Posted: Jan 5, 2008 at 8:05 Quote
blaizeapark wrote:
take any bmx set up... 25-9, etc... and ad a tooth to the back making it a 25-10. it evens out mathematically.

wrong bmx is completly diff just try to stick with 2:1
flag fufalump
Posted: Jan 5, 2008 at 10:55 Quote
Please use the search next time, we've (me personally as well) have covered this extensivly before.
flag rlee560
Posted: Jan 5, 2008 at 11:00 Quote
blaizeapark wrote:
take any bmx set up... 25-9, etc... and ad a tooth to the back making it a 25-10. it evens out mathematically.

This is wrong do not do this.
flag jamiejamiejam
Posted: Jan 5, 2008 at 11:04 Quote
noomfg! r u blind! read my comment that explains the exact same but simpler.
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