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Hey there grizzlycentral folks.I have a 2016 grizzly 700,I have had for allmost 6 months now.I put some 30 silverback tires on couple months back and i have been noticing the power difference..What should i do to the clutches??Thanks
 

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Heaviest secondary spring you can get and maximum shim you can fit in the primary.
If not enough, look into clutch machining.
 

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Hey...Lantz094..Welcome to GC from Wisconsin.

What kind of riding are you planning on? Makes a difference on the clutching needed.
 

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Hey there grizzlycentral folks.I have a 2016 grizzly 700,I have had for allmost 6 months now.I put some 30 silverback tires on couple months back and i have been noticing the power difference..What should i do to the clutches??Thanks
Welcome to GC from Maine.
 

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Welcome to GC.
 

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Welcome from Colorado.
You need to raise the pulley ratio to magnify the available engine torque, and that is done with machining, shim and weight selection.
Then use the lightest secondary spring to transfer the torque without the belt slipping.
Measure your roll-out with the stock tires to compare to the new tires to determine the difference in true diameter between the two by ratio.
You have to raise the pulley ratio the same percentage as the difference in tire diameter ratio to get the stock feel back, and several members have raised the pulley ratio more for better than stock low end pull.
 

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You need heavier spring to avoid belt slippage, not lighter.
What our clutch guru Ridgeway means is not to get the strongest spring possible, because it creates more friction, heat, and wears parts faster. His advise is to only get as strong a spring as to prevent belt slippage. Thus the lightest spring you can get away with, but still maintain good belt grip.
 
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