Aprilia Rs125 Gearbox

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Aprilia Rs125 Gearbox

I am after a gear box for an Aprilia RS125 type 122 engine.

Does the gearbox from the 123 engine fit the 122 engine?

im pretty sure it doesent mate

I think it not as well, im a newbie so get a second opinion but my RS had a recent engine rebuild and the gearing was shot, what the guy who rebuilt it told me that some had tried a botched rebuild and put the wrong gears in, which then snapped all the teeth on the gears.

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