CS-R9100 Dura-Ace 11-speed cassette 11 - 28T

The release of Dura-Ace 9100 delivers subtle, thoughtful tweaks to an already intelligent collection of moving parts. The cassette adds new combinations of gearing options, including expanded options for gearing. It is appropriate for rouleurs and climbers who demand the best of both worlds. It is a Genuine Shimano replacement part.

Technologies:

HG-EV

HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. We provide optimal 11-speed drivetrain gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HYPERGLIDE shifting.

HG-X11

Silky driving, accurate shifting

HG-X11 directional chain realize more smoother shifts and greater overall performance.

Right and left sides are optimized for front and rear shifting respectively.

• 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 have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load
• 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 175 grams for 11-25 tooth
• Wider gear combination: 11-28T/12-28T/11-30T (new gear combination)
• Closer gear combination: 11-25T/12-25T
• Gear combination: 11-25T, 11-28T, 11-30T (new gear combination), 12-25T, 12-28T