The additional speed led us to devising a new support structure for the last six sprockets in two subsets. The form of the teeth is new and they have been treated to increase duration over time.
Eleven sprockets that are even more efficient despite the reduction of the thicknesses we have succeeded. The teeth have been designed to optimize the speed and fluidity of shifting. This form reduces stress on the chain which ascends more easily onto the higher diameter sprockets. The large pinions are divided into sets of three and are mounted on a new aluminium frame. Thanks to this, rigidity increases 180% and the individual sprockets are 70% more resistant to torsion.
Paired with the Shimano HYPERGLIDE (HG) chains, HG cassette sprockets deliver a fast and precise index shifting action. The computer-designed sprockets incorporate specifically positioned shift ramps and tooth profiles for improved chain control during shifting.
Responsive, smooth and low-noise shifting is the result.
Ιt’s not often a cassette is the most significant component in the release of a new groupset, (well, for a year at least, since the launch of Dura Ace 9000), but the extra sprocket on this new Ultegra cassette will be a welcome addition for riders seeking wider ratios.
The CS-6800 will offer plenty: 11-23, 11-25, 12-25, 11-28, and a whopping 11-32. The broad choice supports a concept Shimano calls a “rider tuned drivetrain”, offering ratios they believe are appropriate to cycling’s four major riding types. While its possible to achieve broad ratios from 10-speed set-ups (SRAM’s Wi-Fli offers 11-32, after all), doing so from 11 speeds should reduce the gap between each sprocket.
11-speed cassette with rhythm step design to keep your cadence. Ride anywhere with smooth and precise gear changes.
Improved driving efficiency and stable shifting. Shave bike weight off without sacrificing durability or reliability. Optimized gear combination and gear ratio. Rhythm step gear progression. Optimal balance of lightweight and durability. Combination of aluminium (40T) and steel gears.
Rhythm is the essence of smooth power transfer and proper gear step is the key to maintaining rhythm over varied terrain. The XTR CS-M9000 11-speed 11-40T cassette is not only the widest range cassette Shimano has ever produced, but also it’s most balanced.
Thanks to its Rhythm Step progression, it maintains calculated, shock-free gear steps from one gear to the next; saving you energy and helping you maintain your rhythm on the trail.
The PG-1030 Cassette offers an innovative approach to 10-speed cassette design. Our cassette performance is optimized by material choice, tooth profile and shift ramp design for quick and positive index shifting.
Powerglide™ Chainring – Starting out with raw 7075-T6 alloy plate, we stamp, coin, and CNC the rings to create a precise shifting whole. Coining shapes tooth profiles into designs CNC alone can’t match, creating a stronger tooth by strain-hardening the alloy for superior durability. Stainless steel pickup pins give shifting longevity. Chainring-specific finishing technologies and laser graphics add durability and appeal.
Full Pin™ technology uses eleven lightweight, stamped steel cogs held together with 123 high-strength stainless steel pins. The result: a cassette that’s light, durable and equipped with SRAM’s super wide 10-42 gear range that’s a perfect fit for any ride.
The open design similar to our X-DOME™ cassette aids in mud clearance, giving you cleaner shifting performance and longer component life.
With durable JET™ black finish, the cassette looks as tough as it performs—ride after ride. JET™ finish provides a higher level of corrosion resistance.
XD is a new cassette driver body design that allows the use of a 10 tooth small cog and provides an improved interface with the cassette.
The new SRAM RED Powerdome X is the most advanced cassette ever made. It‘s super light, deadly silent, and delivers an undeniable performance advantage.
The eight cogs in the middle are machined from a single block of high grade tool steel, increasing stiffness while weighing even less than a titanium cassette. Between each cog in the block is a StealthRing elastomer to reduce vibration and noise. Cutouts on the rear cog further reduce weight and add stiffness. It‘s the final piece in the drivetrain puzzle, paired with the new SRAM RED Rear Derailleur, delivers ultra-fast, ultra-quiet shifts that will always put you in the right gear.