Shimano Altus 1×8 Speed Groupset RD-M310 Derailleur M315 Shifter HG31 Cassette

Level: Altus. 1, "Shifter(8S) + Rear derailleur". ②Rear derailleur (RD-M310). Item: Rear derailleur. ①Right shifter (SL-M315,8 Speed). ③Cassette (HG31-8,11-32T). Smart rear derailleur has a Wide Link design for increased rigidity and precise shifting.

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