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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Gear Ratio
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Author Topic: Gear Ratio  (Read 707 times)

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Mr Nice

  • Guest
Gear Ratio
« on: January 01, 2009, 06:13 PM »
Could someone please explainn gear ratio to me? dont know what 16t freewhelel 42 chainrnring v 18t freeewheel 39 chainring means whats the differance/advantage of one other the other? whats the best ratio?
thanks in advance :daumenhoch:

bof

  • Guest
Re: Gear Ratio
« Reply #1 on: January 01, 2009, 06:25 PM »
try this on the bmxultra site the higher the number the harder it is to pedal 44/16 is the average bmx gearing
http://www.bmxultra.com/downloads/flash/gearchart.htm

Offline Dark Diggler

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Re: Gear Ratio
« Reply #2 on: January 01, 2009, 06:35 PM »
Front cog Teeth no. divided by the rear cog Teeth no. multiply by the wheel size (so a good equation for any wheel size  :daumenhoch:) I.E 44/16x20 =55 this is the number you aim for generally. Less is easier more is harder. Baddabing
Whats the matter Kid, don't ya like clowns? Don't we make you laugh? Aint we fukkin funny?

Mr Nice

  • Guest
Re: Gear Ratio
« Reply #3 on: January 01, 2009, 06:40 PM »
Cheeers!

(((sonic)))

  • Guest
Re: Gear Ratio
« Reply #4 on: January 01, 2009, 06:41 PM »
Depends on your style of riding, track you are racing, conditions etc....i still ride with a 46/16 and love it, suits me ;)

Mr Nice

  • Guest
Re: Gear Ratio
« Reply #5 on: January 01, 2009, 06:57 PM »
Depends on your style of riding, track you are racing, conditions etc....i still ride with a 46/16 and love it, suits me ;)
[/quot

Talking os race bike. so does 46/16 give good top end of good acceleration(wifes spelling)?

Offline meticulous

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Re: Gear Ratio
« Reply #6 on: January 01, 2009, 07:08 PM »
46/16 is for top end, you need powerful legs to get going, great for long tracks...
R.I.P  O.M. Far short of the finish line...

moley

  • Guest
Re: Gear Ratio
« Reply #7 on: January 01, 2009, 07:18 PM »
I tried 47/16 at Bradford last summer!!

And I've tried 44/16 too!!

I'm shit with both!!   :LolLolLolLol:

wirewheel

  • Guest
Re: Gear Ratio
« Reply #8 on: January 01, 2009, 07:35 PM »
45 16 with 180 cranks :daumenhoch:

Mr Nice

  • Guest
Re: Gear Ratio
« Reply #9 on: January 01, 2009, 08:31 PM »
Cheers everyone

Offline DoubleD

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Re: Gear Ratio
« Reply #10 on: January 01, 2009, 08:59 PM »
40/17  24 x1.75 whit  180 profiles

RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Gear Ratio
 

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