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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  gearing (again)
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Author Topic: gearing (again)  (Read 1338 times)

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Offline pickle

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gearing (again)
« on: July 28, 2009, 06:15 PM »
if i have a 13t rear freewheel, what is a good normal sort of sized front sproket?   :daumenhoch:

Offline dordymush

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Re: gearing (again)
« Reply #1 on: July 28, 2009, 06:18 PM »
i used a 36 rob and felt about right.
dave the bmxing gypo


Offline pickle

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Re: gearing (again)
« Reply #2 on: July 28, 2009, 06:19 PM »
nice one Dave  :daumenhoch:


magna13

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Re: gearing (again)
« Reply #3 on: July 28, 2009, 08:35 PM »
If its for a park bike then you'll need a 33 ;)

HEYWOOD BMX

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Re: gearing (again)
« Reply #4 on: July 28, 2009, 08:51 PM »
If its for a park bike then you'll need a 33 ;)

 36/13
 33/12

Offline pickle

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Re: gearing (again)
« Reply #5 on: July 28, 2009, 08:53 PM »
cheers guys  :daumenhoch:

i just need it big enough to clear my chainstay brake  :daumenhoch:

Voodoocars

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Re: gearing (again)
« Reply #6 on: July 28, 2009, 08:56 PM »
Take your brakes off...........

Offline fugazi

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Re: gearing (again)
« Reply #7 on: July 28, 2009, 10:41 PM »
These are the ratios most people pair up  :daumenhoch:

44/16
41/15
39/14
36/13
33/12
30/11
28/10
25/9
23/8
Do you grovel to your master? Do you beg like a dog?

Offline dordymush

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Re: gearing (again)
« Reply #8 on: July 28, 2009, 11:00 PM »
you'll want a 36 then rob.
my brake was rubbing when i went to a 33.
just watch what brake you use to as i bought an oddy evolver and it was to deep and hit the chain.
dave the bmxing gypo


Offline pickle

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Re: gearing (again)
« Reply #9 on: July 29, 2009, 08:05 AM »
yeah......i'm looking for the lowest going.......(although getting stick for it) but the oddy II don't look that high?  also i run a AD999 on my proper which isn't that high so may go for one of those??

a call to Stodgy will sort it all out  :daumenhoch:

erniemadden

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Re: gearing (again)
« Reply #10 on: July 29, 2009, 04:58 PM »
If its for a park bike then you'll need a 33 ;)

Bugger !!

so whats the deal with park bikes?

I have a 14T rear and have just bought a 39T front.
Do i need to go down a bit on the front?

Haven't rode it yet but only intend to have a go in the parks.

Cheers...Steve

HEYWOOD BMX

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Re: gearing (again)
« Reply #11 on: July 29, 2009, 05:10 PM »
If its for a park bike then you'll need a 33 ;)

Bugger !!

so whats the deal with park bikes?

I have a 14T rear and have just bought a 39T front.
Do i need to go down a bit on the front?
  *No,39T is the correct gearing.Fugazi33`s list is correct.
Haven't rode it yet but only intend to have a go in the parks.

Cheers...Steve

erniemadden

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Re: gearing (again)
« Reply #12 on: July 29, 2009, 05:21 PM »
If its for a park bike then you'll need a 33 ;)

Bugger !!

so whats the deal with park bikes?

I have a 14T rear and have just bought a 39T front.
Do i need to go down a bit on the front?
  *No,39T is the correct gearing.Fugazi33`s list is correct.
Haven't rode it yet but only intend to have a go in the parks.

Cheers...Steve

Nice one  :daumenhoch:

it confused me cos his list said that the correct gearing for 13t rear was 13/36, but Magna told him it should be 33 for a park.
So i thought I would have to also come down for my ratio. But if you feel 39t is good then that will do for me   ;)

Cheers...Steve

HEYWOOD BMX

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Re: gearing (again)
« Reply #13 on: July 29, 2009, 09:00 PM »
 :) I also have 40t and 34t  chainrings for sale....close enough to 39/33....

Offline dordymush

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Re: gearing (again)
« Reply #14 on: July 29, 2009, 09:44 PM »
i would'nt worry to much anyway.
you roll more than you pedal
dave the bmxing gypo


oldschool rider

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Re: gearing (again)
« Reply #15 on: July 30, 2009, 01:18 AM »
I ride with a Demolition Vulcan on the chainstays and I can run a 25/9 .

Also the Demolition is a great brake  :daumenhoch:





Steve.

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