ULTEGRA is "pro-proven" as it is a direct trickle-down from the DURA-ACE groupset.
Product details
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Clear contact feeling with balanced rigidity, weight and stopping power
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Stabilizer between axles reduces deformation and improves braking efficiency
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More predictable, linear braking curve
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More predictable, linear braking curve
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Wider clearance with larger tire sizes
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Compatible with wider 28C tire size
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