Shimano Tiagra group gets full redesign

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Hot on the heels of the release of the latest road components from Shimano are details of the new Tiagra group. In classic Shimano fashion it includes several design and technology highlights first pioneered in the more expensive groups. While it remains a 10-speed group, it adopts much of the look and style of its more expensive predecessors.

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The gear range for road components continues to expand, and the new Tiagra group can now fit an 11-34t cassette. There are also 11-25t, 11-28t and 11-32t cassettes. If that isn’t enough, a triple crankset is available too. Both the double and triple chainrings have also moved to the 110 bcd, offset, four-arm design found on other Shimano road groups.

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The front derailleurs feature the extra long, high leverage design that first appeared in Dura Ace models to achieve faster, more powerful front shifts, and the rear derailleurs are available in two cage lengths for specific setups.

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In addition to the drop-bar shifters are a pair of 10-speed flat bar shifters with Shimano’s excellent two-way release shifting. They can be paired with a new flat bar brake lever.

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The rim brakes themselves offer a 30 percent increase in brake power and better adjustability.

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