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This is a popular upgrade for a machine with 7 tooth drivers and a 3" track. Stock machines, such as the M8000, come with 19-50 gears (2.63 ratio). Going to the 21-49 gears (2.33 ratio) makes a very nice improvement in track speed and performance while climbing. These are HYVO gears which can be used with your stock chain on 2016-2017 models.
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HYVO GEAR SET 21/49
This is a popular upgrade for a machine with 7 tooth drivers and a 3" track. Stock machines, such as the M8000, come with 19-50 gears (2.63 ratio). Going to the 21-49 gears (2.33 ratio) makes a very nice improvement in track speed and performance while climbing. These are HYVO gears which can be used with your stock chain on 2016-2017 models.
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This is a popular upgrade for a machine with 7 tooth drivers and a 3" track. Stock machines, such as the M8000, come with 19-50 gears (2.63 ratio). Going to the 21-49 gears (2.33 ratio) makes a very nice improvement in track speed and performance while climbing. These are HYVO gears which can be used with your stock chain on 2016-2017 models.
If you are putting them on a 2012-2015 model, order the 90 pin 13 wide Hyvo chain we have listed
2018+ mountain models take the larger spline top gear.
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