The Shimano Acera RD-M3020 SGS Rear Derailleur is built for reliable and precise shifting across 7- and 8-speed drivetrains
offering an ideal solution to protect your bicycles from the elements and potential theft
Compatible with Eagle 12-speed transmissions for extended speed range
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Sleek and stylish stealth body design
Specialized Roubaix SL8 Size:64 cm The Shimano Acera RD-M3020 SGSThe Specialized Roubaix SL8 redefines endurance road performance by blending speed, comfort and control like never before. Lighter, faster and smoother, its built to turn rough roads into fast roads, giving you the confidence to ride further, harder and with total efficiency. Key Features: Future Shock 3. 0 system delivers 20mm of tunable, friction free travel, keeping the front end stable and smooth over rough terrain. AfterShock technology,