03 CRF and YZF 450 Trans Ratios

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Jan 7, 2003
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I'm looking for the trasmission ratios including the primary drive ratio for both the 03 CRF and YZF 450s. If you know either of these I'd appreciate your help. Thanks.
 
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Faded

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Jan 7, 2003
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Okay, I found the numbers for the YZF;

Primary Reduction Ratio - 62/22 (2.818)
Secondary Reduction Ratio - 48/14 (3.429)
Gear Ratio -1st Gear - 27/14 (1.929)
Gear Ratio - 2nd Gear - 25/16 (1.563)
Gear Ratio - 3rd Gear - 23/18 (1.278)
Gear Ratio - 4th Gear - 21/20 (1.050)


Anyone know for the CRF?
 
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Faded

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Jan 7, 2003
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Ah, finally...

Primary Reduction Ratio - 23/63 (2.73)
Secondary Reduction Ratio - (3.846)
Gear Ratio -1st Gear - 1.80
Gear Ratio - 2nd Gear - 1.47
Gear Ratio - 3rd Gear - 1.235
Gear Ratio - 4th Gear - 1.050
Gear Ratio - 5th Gear - 0.909
 
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