Shimano Deore M591 9 Speed Rear Derailleur
Description
The Shimano Deore M591 rear derailleur has a wide link design that increases its rigidity and service life. Plus, its "top normal" return spring lends to incredibly intuitive operation when combined with Rapidfire shifters. In addition to these performance-enhancing features, its alloy and steel construction ensures a lower weight without compromising strength and durability.
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