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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
Material: Black plastic
domestic ground only
Complete OEM piston assembly for 139QMB
If the engine code includes "QM" or "FM" and you're using a115mm variator
Elite 50 (S/SR/LX)
Polini 1500 RPM Compression Torque Spring | 139QMB Dio muffler Material: Black plasticThe Polini Compression Torque Spring (contra spring) at 1500 RPM is a direct fit performance upgrade for Honda Ruckus, Honda Dio, Genuine Buddy Roughhouse, and a wide range of 139QMB based 50cc and 80cc scooters. A stiffer contra spring raises the RPM at which your CVT begins upshifting, keeping the engine in its powerband longer for stronger acceleration and improved top end performance. Made in Italy by Polini to exacting tolerances. Key Features
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