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Post and Discuss gear ratio's. SS MTBs too!

PB Forum :: BMX (20")
Post and Discuss gear ratio's. SS MTBs too!
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flag harobmx666
Posted: Jul 17, 2009 at 8:57 Quote
now i just got a coaster wheel, geisha street, solid axle 9t driver, and a 27t sprocket, pretty hard to pedal but if feels like a great ratio.
flag clive123
Posted: Oct 1, 2009 at 2:15 Quote
would a 30/9 ratio be ok cos i already have a 30 tooth sprocket cba to change getting ti driver in post please reply Smile
flag willy94
Posted: Oct 1, 2009 at 18:31 Quote
ok so i want to ss my bike but im not getting a smaller chainring, its 34 tooth and i want to know how big of a rear cog i should use, PLEASE HELP
flag unregistered-user
Posted: Oct 1, 2009 at 19:39 Quote
i ran a 30 10 and 1/2
it was implosable to get the chain on withour a half link
flag willy94
Posted: Oct 3, 2009 at 12:35 Quote
willy94 wrote:
ok so i want to ss my bike but im not getting a smaller chainring, its 34 tooth and i want to know how big of a rear cog i should use, PLEASE HELP
PLEASE!!!!!
flag austinshepherd
Posted: Oct 4, 2009 at 3:01 Quote
Would a 28:12 ratio be okay for bmx?
flag spliffonator1
Posted: Oct 4, 2009 at 6:08 Quote
austinshepherd wrote:
Would a 28:12 ratio be okay for bmx?

It would be very easy...
flag Ritual-06
Posted: Oct 5, 2009 at 12:03 Quote
i run a 38:16 and i want somthing the kinda the same. i want a smaller front touth ring. could anyone send me some links to good manufactures please

thanksSmile

edit: is this the correct formula??
38:16
=36:15
=34:14
=32:13
=30:12
=28:11
=26:10
=24:9
flag Ritual-06
Posted: Oct 5, 2009 at 12:04 Quote
willy94 wrote:
willy94 wrote:
ok so i want to ss my bike but im not getting a smaller chainring, its 34 tooth and i want to know how big of a rear cog i should use, PLEASE HELP
PLEASE!!!!!

ive changed mine to a 16 at the back. hope it helps Big Grin
flag StevoFS
Posted: Oct 10, 2009 at 19:15 Quote
Ritual-06 wrote:
i run a 38:16 and i want somthing the kinda the same. i want a smaller front touth ring. could anyone send me some links to good manufactures please

thanksSmile

edit: is this the correct formula??
38:16
=36:15
=34:14
=32:13
=30:12
=28:11
=26:10
=24:9
If your talkin Bmx its 25:9
28:10 and etc etc
flag Ritual-06
Posted: Oct 11, 2009 at 3:49 Quote
StevoFS wrote:
Ritual-06 wrote:
i run a 38:16 and i want somthing the kinda the same. i want a smaller front touth ring. could anyone send me some links to good manufactures please

thanksSmile

edit: is this the correct formula??
38:16
=36:15
=34:14
=32:13
=30:12
=28:11
=26:10
=24:9
If your talkin Bmx its 25:9
28:10 and etc etc
na ive got a mongoose dirt 26".and i do dirt jumping.
flag evan247
Posted: Oct 11, 2009 at 18:33 Quote
im running 22:10 right now and its suuuuper sick. if you find that ratio in 38 its awsome. i would say go with a WAAAAAY smaller chainwheel up front. like 28 highest.
flag Ritual-06
Posted: Oct 12, 2009 at 11:46 Quote
evan247 wrote:
im running 22:10 right now and its suuuuper sick. if you find that ratio in 38 its awsome. i would say go with a WAAAAAY smaller chainwheel up front. like 28 highest.
i need somthing a bit easirer tho as i strugle on some lines to get enough speed. 22:10 would be a bit hard at the start woulnt it??
flag evan247
Posted: Oct 12, 2009 at 12:04 Quote
no, if anything its too easy. it feels amazing but thats just my opinion.
flag DIYTx
Posted: Oct 12, 2009 at 12:21 Quote
39-14 atm but it might be 25-14 or 26-14 soon.

EDIT: I dunno if the current one is right because I haven't checked, I just looked on the site. But does 25-14 sound good?

 


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