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RADBMX.CO.UK  |  New School BMX 2004 - Now  |  New School Park, Street & Dirt  |  The Size of your front sprocket ?
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Author Topic: The Size of your front sprocket ?  (Read 6403 times)

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stuartD

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The Size of your front sprocket ?
« on: January 26, 2012, 12:40 PM »
I have a 9 tooth on the rear and at the time went for what seems like the most popular choice of 25T on the front, so my question is , what other combinations are commonly used any why ? ( and by why I mean what do YOU feel are the benefits over other combos)

Ta :daumenhoch:

Offline Dannywhac

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Re: The Size of your front sprocket ?
« Reply #1 on: January 26, 2012, 12:44 PM »
I run 10T - with either a 28T or 30T - find the 30T is a lot easier to do roll-backs with, but like me splined 28T for everyday gearing :)
"Listen. I don't care what you say. Chlamydia is a soup." (Phelps, L. 2000)

Offline pickle

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Re: The Size of your front sprocket ?
« Reply #2 on: January 26, 2012, 01:55 PM »
as above, 10/28 for me  :daumenhoch:

evamedia

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Re: The Size of your front sprocket ?
« Reply #3 on: January 26, 2012, 02:31 PM »
25-9 closest to 44-16

Offline oldtired

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Re: The Size of your front sprocket ?
« Reply #4 on: January 26, 2012, 02:33 PM »
mines as big as Russia ............  :LolLolLolLol: 

mattuknc

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Re: The Size of your front sprocket ?
« Reply #5 on: January 26, 2012, 03:41 PM »
I was running a 28/9, nice for street riding.  :daumenhoch:

Offline Dark Diggler

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Re: The Size of your front sprocket ?
« Reply #6 on: January 26, 2012, 04:30 PM »
25-9 closest to 44-16

I run 33/12, its identical to 44/16 (55"), 25/9 is a smidge harder (55.55")
Whats the matter Kid, don't ya like clowns? Don't we make you laugh? Aint we fukkin funny?

elevensies

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Re: The Size of your front sprocket ?
« Reply #7 on: January 26, 2012, 05:08 PM »
im running 30/10

the 30 is because im faithful to chainstay brake mounts rather than seatstay, and any smaller and my chain rubs on the brake bosses

it works for me.

Clean

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Re: The Size of your front sprocket ?
« Reply #8 on: January 26, 2012, 08:14 PM »
mines as big as Russia ............  :LolLolLolLol: 

Stop quoting youtube, Jim!  :2funny:

25/9 works for me!  :daumenhoch:

Offline Betty

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Re: The Size of your front sprocket ?
« Reply #9 on: January 26, 2012, 08:17 PM »
28/10
2 minutes turkish...

evamedia

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Re: The Size of your front sprocket ?
« Reply #10 on: January 27, 2012, 10:47 AM »
25-9 closest to 44-16

I run 33/12, its identical to 44/16 (55"), 25/9 is a smidge harder (55.55")

Fair enough, but who still makes a 33t sprocket?

theRuler

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Re: The Size of your front sprocket ?
« Reply #11 on: January 27, 2012, 12:36 PM »
As a guide go for a ratio of 2.75:1

So 25/9, 32/12, 44/16  etc

On my Ripper I am running 32/12, but the chain is just catching on the chainstay.  No bother.  It will wear a groove into it.

mattuknc

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Re: The Size of your front sprocket ?
« Reply #12 on: January 27, 2012, 12:43 PM »
Profile probably do, I'll have a look in the shed and see if I can find one... :daumenhoch:
25-9 closest to 44-16

I run 33/12, its identical to 44/16 (55"), 25/9 is a smidge harder (55.55")

Fair enough, but who still makes a 33t sprocket?

Offline john4130

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Re: The Size of your front sprocket ?
« Reply #13 on: January 28, 2012, 10:40 AM »
25/9 on my ramp bike and 24/12 on my flatlander.

m1ke

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Re: The Size of your front sprocket ?
« Reply #14 on: January 28, 2012, 08:27 PM »
33/12  8)

lk_97

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Re: The Size of your front sprocket ?
« Reply #15 on: February 01, 2012, 12:25 PM »
Would 25/11 work? Or would I be pedalling like mad and getting nowhere?

Offline Dark Diggler

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Re: The Size of your front sprocket ?
« Reply #16 on: February 01, 2012, 12:44 PM »
Pedalling like mad and going nowhere  :daumenhoch:
Whats the matter Kid, don't ya like clowns? Don't we make you laugh? Aint we fukkin funny?

lk_97

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Re: The Size of your front sprocket ?
« Reply #17 on: February 01, 2012, 02:28 PM »
Pedalling like mad and going nowhere  :daumenhoch:

Probably won't go for that then, cheers :daumenhoch:

Offline BENDYCAT ELEVENTEEN

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Re: The Size of your front sprocket ?
« Reply #18 on: February 01, 2012, 10:45 PM »
25/9

old school set up - so if i run a 44/16 and find it better for long haul and speed - but also like a 42/16 for quicker feel off the start and for better balance on turns

so what would the same be on my Stereo Electro for the same feel as above ?
The Devil is away on business, I'm having to step in for him - How can I make your day Hell !!!

elevensies

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Re: The Size of your front sprocket ?
« Reply #19 on: February 01, 2012, 10:53 PM »
a 42x16 = 51.2''

closest would be 25x9 (you already have)= 54.2''
so unless you can get a smaller front sprocket, 22tooth then this IS the closest running with a 9tooth rear

an 11x30 = 53.2''
a 44x16= 53.6''

hope this helps

Offline Gary72

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Re: The Size of your front sprocket ?
« Reply #20 on: February 01, 2012, 11:21 PM »
You can get 23t sprockets, I have had a 24t Profile imperial in the past, Sold it on now though, Had it to make the gearing easier for my son.

elevensies

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Re: The Size of your front sprocket ?
« Reply #21 on: February 02, 2012, 09:26 AM »
yeah, thats what i was trying to say, with a 9tooth, he would need to go lower than 25 down to around 22 or 23 if he really wants.

the gearing is so close though i personally dont think its worth it, And stick with 25/9.

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