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Experience optimal performance with the e*thirteen Helix R 12 Cassette, designed to elevate your biking adventures. This high-quality bike component boasts a lightweight construction, ensuring effortless speed and agility on any terrain. With its innovative 12-speed configuration, you'll enjoy an unmatched range of gear ratios, allowing you to tackle steep climbs and fast descents with ease. The durable Helix R 12 Cassette ensures a smooth, efficient ride, making every outdoor excursion more enjoyable and exhilarating. Upgrade your bike with e*thirteen components and experience the difference of premier craftsmanship.