The Shimano Dura-Ace CS-9000 is a super lightweight 11-speed HG-EV Cassette with a rigid carbon and alloy carrier for excellent shifting even under the most demanding gear changes.
- Hyperglide EV sprockets
- Close ratio gearing allows a more efficient use of energy through finer cadence control
- Largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity
- 5 largest sprockets are made from titanium to reduce weight without sacrificing strength
- Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity
- Nickel-plated finish offers hard wearing resistance to corrosion
- Alloy cassette lockring
- For Super Narrow 11-speed HG-EV chains
- Average weight 166 grams for 11-23 tooth
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