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So, I get this, I think I even understand some of the math behind it being a nerd and all. The dumb question is if you're trying to fit an aftermarket speedo is there a calibration you can do on the speedo to match to the gear ratio or am I over thinking this?
You are after a speedo ratio... not a gear ratio. Gear ratios are how fast your rear wheels are turning at a certain gear and certain engine RPMs.
Speedo ratio is how many rotations of your speedo cable per rotation of your wheel, though this is more often represented as miles per hour compared to rotations per minute of the speedo cable.
In your case, 60:2240 is the correct one to use for the speedometer. Your tach is 5:1.
Hey I learnt about gear ratios though so it worked for me but I was confused for sure. This is the info I needed man, thanks. Is there a standard for this or do aftermarket speedos vary? Are there any adjustments that you can make to an aftermarket speedo to align this?
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