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High quality bore kit that shows substantial power gains throughout the RPM range. 61mm piston bores into stock cylinder. 10.5:1 compression ratio allows use of premium pump gas. Complte kit includes: piston, ring set, pin, clips and gaskets. Add BBR 26mm Carburetor Kit for additional performance gains.
BBR General Jetting Guidelines ChartStock KLX140 - 58.0mm bore, 54.4mm stroke
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