I use a non-o ring chain. There is lots of friction in flexing an o ring chain. And standard chains are not expensive anyway. 20 hp isn't much. I need as much as I can transfer to the rear wheel!
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-2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket
-NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it
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