107mm Adjustable Clutch & Springs Aprilia Rally 50 AC Sonic 50 AC SR50 Street Engine Parts MKS Ecobike Panter I [BT50QT-9(MKS)]

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107mm Adjustable Clutch & Springs Aprilia Rally 50 AC Sonic 50 AC SR50 Street Engine Parts MKS Ecobike Panter I [BT50QT-9(MKS)]This 107mm 3 shoe racing clutch is supplied with two sets of clutch springs with different hardness (blue = soft red = hard). The spring tension can be adjusted easily with a hexagon screw driver without having to remove the clutch from the converter. Clutch shoes: diameter 105mm, suitable for clutch bell internal diameter of 107mm. Tips: The old version usually has a 2 shoes clutch and the clutch bell has an inner diameter of 105mm. The new version