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Offering pro-level features, the 9-speed compatible.
• Tiagra rear derailleur gives high performance at a
low price.
• Tiagra rear derailleurs are Mega9 compatible.
• Wide link design increases rigidity and service life.
• Advanced light action for low-friction shifting up
or down the block.
• Alloy body's and outer link leads to lower weight
without compromising strength and durability.
• 11-tooth pulleys for reduced pulley wear and chain
noise.
• Two fluorine-coated link pin bushings for low-friction
performance.
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