The Shimano Dura-Ace 7900 10-speed cassette is a performance-driven choice, originally released in 2008, that blends lightweight construction with precise, high-speed gearing. With a close-ratio 1121T spread, its engineered for elite racers and fast-paced training rides where maintaining optimal cadence is key. Its slick and responsive gear changes offer efficient pedaling economy, especially on rolling terrain and criterium circuits.Engineered for strength without excess weight, this cassette uses high-quality steel sprockets mounted on a machined alloy spider. Its precision ramping and tooth profiles deliver quick and quiet shifts across the 10-speed spectrum. Though part of an older generation, the 7900 cassette remains a benchmark in road-racing hardware, prized for its performance and weight efficiency.Features- 10-speed spacing with an 11-21T close-ratio gear range- High-grade steel sprockets mounted on a lightweight alloy carrier- Precision tooth profiling for swift and reliable shifting- Compatible with Shimano 10-speed road drivetrain systems- Ideal for criterium, fast-paced road riding, and competitive cyclists

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