Gearing and clutch weight changes

S

Stewy

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Oct 16, 2008

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• Sep 5, 2009

• #1

Could someone educate me on gearing and clutch changes? I have an 09 800 Dragon 121. I am a Flatlander 0-2000 feet. My stock gearing is 25/40 with 78 pitch chain. The weights stock were 10-68's I put 10-70's in and still have the rpm I like (8100) With the 10-68's my backshift was very abrupt the 70's smoothed that out. Would a minimal change of a 41 bottom gear even be worth it ? That would take my gear ratio from 1.60 (stock) to 1.64 still with the 78 chain? I am trying to learn and any help is appreciated. I rarely ( maybe twice a year get up over 100) We mostly trail ride, corner to corner stuff.

 

go high fast

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May 7, 2008

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• Sep 5, 2009

• #2

aaen clutch tuning book is good to learn

 

1

1FASTXC

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• Sep 5, 2009

• #3

24-41 gearing.

 

M

manowar

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• Sep 5, 2009

• #4

Yea the genral rule here in trail contry is down one up one on the gearing as fast xc said . now on your cluching you only ride trails or do you get in the diches and push it ? If you stay only on trails you can get agressave with the cluching let me no

 

S

Stewy

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Oct 16, 2008

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• Sep 5, 2009

• #5

O.k. If I go 24/41 I could still be o.k. w/ the 78 chain and that would put me @ 1.71 Gear Ratio. If I do that what changes are typical, as far as rpm, etc..
The way we ride is mostly rough trail, with occasional of trial, not a whole lot of wide open spaces.

 

M

manowar

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• Sep 5, 2009

• #6

How much do you weigh ? I can give you a good hot 0-70 mph set up for the trail but it will be a little lugish in deeper snow or a heaver load like with two people or towing a sled. The trick with the cfi 800 it to keep it about 7900-8000 rpm in accel .

 

S

Stewy

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• Sep 5, 2009

• #7

I am 200lbs. w/out gear on.

 

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manowar

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• Sep 5, 2009

• #8

Well at least for trail riding

 

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manowar

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• Sep 6, 2009

• #9

Ok with your rider weight the driven will do good . And the two drive set ups i do are 10-70 with dark blue and white polaris spring and 10-72 with black and white polaris spring. The later will hold a little less rpm in acc and do good for slick trails .

 

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manowar

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• Sep 6, 2009

• #10

Doing this puts you at a little higher tourk for good accl. Running more rpm is little more horse but not as quick for us .for a moutain set up you want a little more horse to keep it going as you climb like enurisa.

 

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Stewy

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• Sep 6, 2009

• #11

Thanks for the replies