| Rear derailleur pulleys play an essential role in the bike's drive train.There are two rear derailleur pulleys to ensure chain tension and guidance during gear changes.The top roller, known as the "puley", moves the chain, while the bottom roller, known as the "string", tensions the chain.To ensure smooth, precise sprocket changes, derailleur pulleys must be in perfect condition.Nom From Product : derailleur pulleyProduct Use: roadNumber Of Speeds: 10Subfamily: rear derailleursProduct family : components (velo)Packaging : (blister of 2 pieces) | Price from $27.49 up to $42.57 Compare prices and buy Campаgnolo Derailleur pulley Campagnolo Campagnolo 10 V Gris 7203 Compare prices3→ |