RADBMX.CO.UK

New School BMX 2004 - Now => New School Park, Street & Dirt => Topic started by: stuartD on January 26, 2012, 12:40 PM

Title: The Size of your front sprocket ?
Post by: stuartD 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:
Title: Re: The Size of your front sprocket ?
Post by: Dannywhac 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 :)
Title: Re: The Size of your front sprocket ?
Post by: pickle on January 26, 2012, 01:55 PM
as above, 10/28 for me  :daumenhoch:
Title: Re: The Size of your front sprocket ?
Post by: evamedia on January 26, 2012, 02:31 PM
25-9 closest to 44-16
Title: Re: The Size of your front sprocket ?
Post by: oldtired on January 26, 2012, 02:33 PM
mines as big as Russia ............  :LolLolLolLol: 
Title: Re: The Size of your front sprocket ?
Post by: mattuknc on January 26, 2012, 03:41 PM
I was running a 28/9, nice for street riding.  :daumenhoch:
Title: Re: The Size of your front sprocket ?
Post by: Dark Diggler 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")
Title: Re: The Size of your front sprocket ?
Post by: elevensies 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.
Title: Re: The Size of your front sprocket ?
Post by: Clean on January 26, 2012, 08:14 PM
mines as big as Russia ............  :LolLolLolLol: 

Stop quoting youtube, Jim!  :2funny:

25/9 works for me!  :daumenhoch:
Title: Re: The Size of your front sprocket ?
Post by: Betty on January 26, 2012, 08:17 PM
28/10
Title: Re: The Size of your front sprocket ?
Post by: evamedia 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?
Title: Re: The Size of your front sprocket ?
Post by: theRuler 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.
Title: Re: The Size of your front sprocket ?
Post by: mattuknc 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?
Title: Re: The Size of your front sprocket ?
Post by: john4130 on January 28, 2012, 10:40 AM
25/9 on my ramp bike and 24/12 on my flatlander.
Title: Re: The Size of your front sprocket ?
Post by: m1ke on January 28, 2012, 08:27 PM
33/12  8)
Title: Re: The Size of your front sprocket ?
Post by: lk_97 on February 01, 2012, 12:25 PM
Would 25/11 work? Or would I be pedalling like mad and getting nowhere?
Title: Re: The Size of your front sprocket ?
Post by: Dark Diggler on February 01, 2012, 12:44 PM
Pedalling like mad and going nowhere  :daumenhoch:
Title: Re: The Size of your front sprocket ?
Post by: lk_97 on February 01, 2012, 02:28 PM
Pedalling like mad and going nowhere  :daumenhoch:

Probably won't go for that then, cheers :daumenhoch:
Title: Re: The Size of your front sprocket ?
Post by: BENDYCAT ELEVENTEEN 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 ?
Title: Re: The Size of your front sprocket ?
Post by: elevensies 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
Title: Re: The Size of your front sprocket ?
Post by: Gary72 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.
Title: Re: The Size of your front sprocket ?
Post by: elevensies 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.
SimplePortal 2.3.5 © 2008-2012, SimplePortal