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Technical & Reference Section => Tech and Restoration => Topic started by: pickle on July 28, 2009, 06:15 PM

Title: gearing (again)
Post by: pickle 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:

Title: Re: gearing (again)
Post by: dordymush on July 28, 2009, 06:18 PM

i used a 36 rob and felt about right.

Title: Re: gearing (again)
Post by: pickle on July 28, 2009, 06:19 PM

nice one Dave  :daumenhoch:

Title: Re: gearing (again)
Post by: magna13 on July 28, 2009, 08:35 PM

If its for a park bike then you'll need a 33 ;)

Title: Re: gearing (again)
Post by: HEYWOOD BMX on July 28, 2009, 08:51 PM

Quote from: magna13 on July 28, 2009, 08:35 PM

If its for a park bike then you'll need a 33 ;)

 36/13
 33/12

Title: Re: gearing (again)
Post by: pickle on July 28, 2009, 08:53 PM

cheers guys  :daumenhoch:

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

Title: Re: gearing (again)
Post by: Voodoocars on July 28, 2009, 08:56 PM

Take your brakes off...........

Title: Re: gearing (again)
Post by: fugazi 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

Title: Re: gearing (again)
Post by: dordymush 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.

Title: Re: gearing (again)
Post by: pickle 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:

Title: Re: gearing (again)
Post by: erniemadden on July 29, 2009, 04:58 PM

Quote from: magna13 on July 28, 2009, 08:35 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

Title: Re: gearing (again)
Post by: HEYWOOD BMX on July 29, 2009, 05:10 PM

Quote from: erniemadden on July 29, 2009, 04:58 PM

Quote from: magna13 on July 28, 2009, 08:35 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

Title: Re: gearing (again)
Post by: erniemadden on July 29, 2009, 05:21 PM

Quote from: HEYWOOD BMX on July 29, 2009, 05:10 PM

Quote from: erniemadden on July 29, 2009, 04:58 PM

Quote from: magna13 on July 28, 2009, 08:35 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

Title: Re: gearing (again)
Post by: HEYWOOD BMX on July 29, 2009, 09:00 PM

 :) I also have 40t and 34t  chainrings for sale....close enough to 39/33....

Title: Re: gearing (again)
Post by: dordymush on July 29, 2009, 09:44 PM

i would'nt worry to much anyway.
you roll more than you pedal

Title: Re: gearing (again)
Post by: oldschool rider 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:
(http://www.radbmx.co.uk/archive/albums/kk107/oldschoolrider_2008/bikepicsJune2009005.jpg)




Steve.