Selden Plain Sheave 21/4.2/9mm (Front Sheaves).Used on RS Quba, RS Vision, RS100, RS200, RS400, RS500, and RS2000 as the mast head sheave. Outer Diameter: 21mm. Inner Diameter: 4.2mm. Sheave width: 9mm.
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Read ReviewsSelden Plain Sheave 21/4.2/9mm (Front Sheaves).Used on RS Quba, RS Vision, RS100, RS200, RS400, RS500, and RS2000 as the mast head sheave. Outer Diameter: 21mm. Inner Diameter: 4.2mm. Sheave width: 9mm.
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