Gearing help?

[421alkybanshee]

Hi all, I've been racing asphalt and getting ready to go to sand/dirt. Currently running 17/ 40 sprockets. I'm running a 421 cub with 24 tall tire. What gearing will be optimal?

Paddles are SLS staggered 14 paddle.

I was wondering if 14/46 is where I should be?

Thx in advance

[J-Madd]

There are a few variables there. Are you racing 300 ft?

 

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[J-Madd]

And no 14/46 is not it.

 

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[421alkybanshee]

Yes, 300 ft.

[J-Madd]

Yes, 300 ft.

You should start at 14/43 with that tire. Assuming average weight. Tune from there.

 

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[justin_smallwood]

Yeah that is a tall tire...I run 14/41 with a 20inch. And it's pretty good. I'll do what J-madd said

[J-Madd]

Yeah that is a tall tire...I run 14/41 with a 20inch. And it's pretty good. I'll do what J-madd said

 

 

The great thing about changing from a 22" tire to a 24" is that it is about a 1 tooth difference in the front sprocket to keep the same final ratio. So if you like to try different tires but you are happy with your gearing, just change the front sprocket 1 tooth. No need to change the rear. Also there's a better chance your chain will accept both gearing setups.

 

 

EDIT: I see you run 20" tire, but my statement still stands true for those that have 22" and 24".

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[justin_smallwood]

And up that was my mistake..I do run a 22 inch tire. Just realized that after I read your message

Edited May 3, 2017 by justin_smallwood

[421alkybanshee]

Ok, thank you