Hi folks, I'm new to this forum. I'm close to completing a project I've been wanting to do for many years. It's converting an atc to a two wheel mini bike. It's a great challenge and a learning curve. My biggest challenge now is fine tuning the gear ratio using a jack shaft. Ground zero was 10-14/14-49 a 4.9:1 ratio, and was extremely underpowered. Tried 10-20/14-49 a 7:1 ratio is much better but still underpowered. Next attempt I'm planning 10-30/14-49 a 10:1 ratio. Wish me luck.....
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