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Discussion Starter · #1 ·
I have a 2018 thumpstar TSX-C 125 (did a motor swap to a pitster pro 155z HO) I want to get more power without shortening the gears. I'm currently running 15/43 on my sprockets. Looking for a solution. I dont even know what aftermarket sprockets will fit this thing. T bolt only shows my current sprocket as options. Any suggestions?? How can I get more bottom end power without playing with the gearing (as I may not be able to)
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