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- Wider range, narrower gap.
- A road race derailleur that doesn't fear gravel.
- Shadow Technology improves shifts and protects in crashes.
- Durable construction equal to years of on- and off-road rides.
- Barrel adjuster makes tuning less fiddly.
- Long cage handles up to a 34t and short cage is good up to 30t.
- Also extends the cassette range of Dura-Ace 9100.