SHIMANO Ultegra R8000 Cassette 11-30T

Shimano's Ultegra group is one of the most popular out there with good reason: it's the perennial favorite when you factor the performance-to-dollars equation. With different demands for drivetrain ranges required for road, gravel, and CX riding, Shimano has created cassette ranges designed to allow the R8000 drivetrain to easily satisfy the needs for a variety of riders. The Ultegra CS-R8000 Cassette ranges as high as 32t, so you can set up the new Ultegra (or Dura-Ace R9100) with the range you need for gravel epics, 4 corner crits, hill climbs, junior nationals, and everything in-between. Shimano's experience in forging, machining, and engineering allows for an enormous amount of technology that goes into tooth design, shaping, and shifting ramps. The cogs themselves are constructed from a nickel-plated steel that prevents corrosion and is slow to wear. Ultimately this leads to cassettes that shift smoother and more precisely--and last longer--at a price that's friendly to the self-sponsored racer. The top five cogs are grouped as three and two, respectively, and are riveted to anodized aluminum spiders that add stiffness to improve shifting. The remaining six cogs are individual with spacers between, and an anodized aluminum lockring screws into the freehub to hold the entire assembly together. One spline of the cassette is wider than the others and corresponds with the splines on the freehub, so the cassette cogs can only be installed with the right clocking of the shifting ramps, timing them for perfect chain pick-up and release. This innovation is true to Shimano's Japanese culture, which uses the term "poka-yoke" to refer to features--like these guiding splines--that serve as built-in wards against user error. Shimano Ultegra cassettes shift so well and are so unnoticeable that even World Tour teams will often sub Ultegra cassettes to get the bikes to the minimum weight limit. Frames and wheels are just so light these days, and adding mass to the cassettes ..

Shimano CS-HG400 9-Speed CassettesNickel plated finish for corrosion resistanceDrilled cogs for weight savingsNickel plated steel lockringItem Specifications 10 Speed 10 SpeedDefined ColorSilverColorSilverCassette Cogs11-13-15-17-20-23-26-30-34Drivetrain Speeds11-34Cassette Body TypeShimano/SRAM 8Alivio CS-HG400 9 Speed Cassette.

The new Sram Pg1170 power glide cassette is light, and delivers an undeniable performance advantage. It's the final piece in the drivetrain puzzle, paired with the new Sram Force22, 11 speed, rear derailleur, delivers ultra-fast, ultra-quiet shifts that will always put you in the right gear.High grade steel that is heat treated and is lighter and stiffer than the competition. 11 speed cassette for a drivetrain of 22 usable gears w/o rubbing or Rasp. Weight: 229g (11-26T). Forged 7000 Series allo

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 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.This xg-1150 cassette is an integral part of the Sram 1x drivetrain system, no compromises. Full pin technolog

The new Sram Pg1170 power glide cassette is light and delivers an undeniable performance advantage. It's the final piece in the drivetrain puzzle, paired with the new Sram Force22, 11 speed, rear derailleur, delivers ultra-fast, ultra-quiet shifts that will always put you in the right gear.High grade steel that is heat treated and is lighter and stiffer than the competition. 11 speed cassette for a drivetrain of 22 usable gears w/o rubbing or Rasp. Weight: 229g (11-26t). Forged 7000 Series alloy