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19/50 or 21/49 with 7 tooth drivers 3 in extreme

HCR10

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www.comfortchampions.com
Putting sled back together to night and can't decide 19/50 or 21/49 with 7 tooth drivers and 3 inch 156 extreme. Also cutler turbo 12 lbs boost. Any experience or help would be appreciated.
 

Woody67

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Putting sled back together to night and can't decide 19/50 or 21/49 with 7 tooth drivers and 3 inch 156 extreme. Also cutler turbo 12 lbs boost. Any experience or help would be appreciated.

21/49 with 7 tooth will be very similar to your 19/50 with the 8 tooth driver.
 

RACINSTATION

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20/49 would be ideal, but if you only have two choices go with the 21/49 on the turbo application. You are gearing down from stock with the 7t drivers as it is. You want to load the turbo anyway for best performance.
 

Woody67

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I was thinking the 21/49 was a better choice. Do they make a 20 tooth top gear that is available.

Arctic Cat does not offer a 20 tooth top gear for the linkbelt silent chain. Team does. Team also offers a hyvo 20/49 combo with chain.
 
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