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SKU: FW8997

Shimano Dura-Ace CS-9000 11-Speed 13-Tooth Cassette Cog - Lightweight Aluminum Alloy, High-Performance Engineering, Precision Gear Shifting, Compatible with Ultegra CS-6800, Bike Racing & Road Cycling Upgrade

Regular price $13.09
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Description
Specifications

Upgrade your cycling performance with the Shimano Dura-Ace CS-9000 11-Speed 13-tooth Cassette Cog - the premium choice for competitive cyclists and serious enthusiasts. Designed with precision engineering and cutting-edge technology, this high-performance cassette cog offers seamless shifting, exceptional durability, and optimized gear ratios to elevate your riding experience.

Materials & Construction:

Constructed from lightweight, high-grade steel, the Shimano Dura-Ace CS-9000 13t cassette cog delivers superior strength and longevity. Its robust build ensures consistent performance under demanding conditions, while the advanced heat treatment processes enhance wear resistance for reliable, long-term use.

Performance & Engineering:

Engineered for precision and smoothness, this 11-speed cassette cog features tight manufacturing tolerances that enable flawless gear transitions. The 13-tooth configuration provides optimized cadence and acceleration, making it ideal for climbing, sprinting, or maintaining high speeds on flat terrains. Compatible with Shimano's Dura-Ace CS-9000 group sets, it ensures crisp, responsive shifting every time.

Components & Technology:

Incorporating Shimano's refined Hyperglide+ technology, the CS-9000 cassette offers effortless, precise shifting performance across all gears. Its wide-range gear ratio design maximizes power transfer and efficiency, allowing you to tackle varied terrains with confidence. The 11-speed compatibility ensures smooth engagement with Shimano's top-tier derailleur and chain systems.

Style & Use Case:

With a sleek, professional finish, the Shimano Dura-Ace CS-9000 13t cassette complements high-end racing bikes and premium road bikes. Whether competing in races, conquering challenging climbs, or enjoying high-speed training rides, this cassette cog delivers maximum performance and reliability. Its lightweight profile contributes to bike responsiveness and agility.

Innovative & Differentiating Features:

The standout feature of this cassette cog is its meticulously engineered tooth profile, designed to reduce chain wear and improve shifting precision. Its compatibility with Shimano's 11-speed groups and durable steel construction make it a reliable upgrade that enhances overall drivetrain efficiency.

Optimize your bike's drivetrain with the Shimano Dura-Ace CS-9000 13-tooth 11-speed cassette cog - a perfect blend of precision engineering, durable materials, and advanced technology designed for serious cyclists seeking speed, durability, and seamless shifting.

  • Elevate your cycling performance with the Shimano Dura-Ace CS-9000 11-Speed 13t Second Position Cassette Cog, designed with high-precision engineering for smooth and reliable gear shifts on every ride.
  • Constructed from lightweight, durable materials such as aluminum and titanium, this cassette cog offers exceptional strength and longevity while minimizing weight for improved bike handling and speed.
  • Compatible with Shimano's flagship Dura-Ace R9100 and Ultegra R8000 11-speed drivetrains, this component features advanced Hyperglide technology for crisp, precise shifting across all gears, even under high torque conditions.
  • Ideal for competitive riders and serious cyclists, this 13-tooth cassette cog enhances your bike's acceleration and climbing capability, making it perfect for race day, training, or endurance riding.
  • Designed with a sleek, aerodynamic profile and versatile second-gear position, the Shimano Dura-Ace CS-9000 ensures optimal performance and style on road bikes, helping you achieve your cycling goals with confidence.
Tooth Count13
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Customer Reviews

Based on 2 reviews
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E
Ernest Meunier

Same as Ultegra 6800; useful with 12t 1st posotion to replace silly 11/12t OE setups from Shimano and SRAM.;

A
Andy Sutterfield

This is a very particular product for a very specific purpose. The way modern Shimano cassettes are built the largest three cogs are always attached together the middle 5-6 cogs are individual gears and the smallest two cogs are built in a special way. The smallest cog is made so the cassette lockring threads into it and the second to the smallest cog is made to mediate between the odd small cog and the normal third cog.

This cog is made to fill that weird second cog position. But you'll also notice that it has 13 teeth while most modern cassettes have an 11 tooth small cog which dictates a 12 tooth second cog. So this 13t 2nd position cog is meant for an 11spd cassette whose smallest cog is 12t.

I bought this cog along with  this  cog and another regular 15t cog in order to turn my 11-32t cassette into a more usable 12-32t cassette. I don't find my 11t cog very useful especially when I'm not racing and having more closely spaced gears in the middle of the cassette where I actually use them is much more useful. In this case I now have single tooth jumps from 12-16t and my biggest jump is from 16-18t instead of from 14-16t. Everything runs and shifts as smoothly as it ever has.

I also later used the new 12t and 13t cogs (and another 16t cog) to modify my 11-28t cassette into a 12-28 and that also worked very well.

This part is definitely overpriced at $10 especially when you can get some complete 105 11spd cassettes for as low as $30. But if you just want to do a conversion like I did it's what you need.;