Aprilia SR 50 R LC Torque Spring +1000 Naraku Sport. NGK: BR8ES. This product is suitable for the Aprilia SX 50 11-13 (D50B) [ZD4PVG01/ H01/ L01/ M01/ SWA]. For 4-stroke engines with 250cc or more, the spark plug should be cleaned or changed after 6000km.
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