unsure if working so listed for spares or repairs The Shimano Ultegra Di2 RD-6870 rear mech 11 speed derailleur is a high-quality bike component designed for cyclists looking for precision and efficiency in their gear shifting. With its sleek design and short cage derailleur cage length, this rear derailleur is perfect for 11-speed bikes. The Shimano brand is known for its durability and reliability, making this a great choice for serious cyclists looking to upgrade their bike's performance. The set includes everything needed for a smooth and reliable gear shifting experience, making it a must-have for any cycling enthusiast.
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