Upgrades for 78.5cc predator clone

Izzyrolls

New Member
May 29, 2019
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My first 4 stroke bike build, was thinking about either getting a bigger first stage driven sprocket to get a 13 gear ratio or just buying a whole torque converter altogether. I heard that mufflers on four strokes need back pressure so I was thinking about getting a newer and advanced muffler altogether because the one I bought has the cap taken off. Any thoughts of what I should go with?

Bigger first stage driven sprocket: https://www.amazon.com/Tooth-Sprocket-Aluminum-P5256-1-Circle/dp/B078XPZYP7

Torque converter: https://www.gopowersports.com/tav-30-75-torq-a-verter-comet-after-market/
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