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Old 09-02-2019
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neallewis neallewis is offline
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Join Date: Feb 2012
Location: UK
Posts: 3,368
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I'm not convinced that's a kit spur. I've known of slipper issues when using off-brand spur gears, due to thickness. kit spur us 80 tooth.

Kit pinion is a 22 tooth, which is fine for 7.5/6.5 motors.
With a 10.5 turn, you want to be at a 24/25 really.
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