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AFAM 48011124 : AFAM Chain Kit 520XSR 15/48 Super-Reinforced - Ultra-Light Self-Cleaning Rear Sprocket 175,31 €
AFAM 48012461 : AFAM Chain Kit 525XSR2 17/45 Super-Reinforced - Ultra-Light Hard Anodized Rear Sprocket 191,42 €