Ceramicspeed Alpha Pulley Wheels
Ceramicspeed Alpha Pulley Wheels

Alpha Pulley Wheel

Learn about ADR technology ↓

The New Generation of High-Performance Pulleys

When it comes to drivetrain efficiency, attention often focuses on the chain, cassette, and derailleur. Yet there is a component that is small in size but crucial to performance: the rear derailleur pulleys. With the new ALPHA Pulley Wheels, CeramicSpeed introduces a solution designed to offer greater durability, protection, and smoothness, bringing its most advanced technology to a compact format that is compatible with original groupsets.

Designed for cyclists who want to improve drivetrain performance without drastically changing their bike’s setup, ALPHA Pulley Wheels offer a new take on the concept of an upgrade. The goal is not only to reduce friction but also to increase the system’s overall reliability and ensure consistent performance over time, whether in competition or everyday use.

Handcrafted, assembled, and inspected in Denmark, the new pulleys combine CeramicSpeed’s proven expertise in ceramic bearings with a completely redesigned structure. The body consists of a one-piece, high-precision molded composite construction—a solution that enhances durability and helps reduce wear resulting from intensive use.

At the heart of the project are the renowned CeramicSpeed ceramic bearings, designed to minimize mechanical resistance and ensure an extremely smooth rotation. This results in a more efficient drivetrain, more precise shifting, and a smoother feel with every pedal stroke.

ADR Technology: Advanced Protection

One of the distinctive features of the new ALPHA Pulley Wheels is the integration of the patented ADR (Active Debris Remover) system, a technology developed to protect the bearings from dirt, water, and external contaminants.

The ADR system combines an advanced sealing design with a configuration engineered to actively expel contaminants before they can reach the bearing. The result is a significant increase in service life and a reduction in maintenance requirements over time.

To highlight this innovation, each pulley features the distinctive ADR logo integrated into its design—an element that immediately identifies the ALPHA family and its commitment to maximum reliability.

Designed to Perform Better

ALPHA Pulley Wheels also introduce a functional distinction between the upper and lower pulleys.

The upper pulley was designed to ensure optimal chain control and precise shifting, while the lower pulley is optimized to promote smooth operation of the system during power transmission.

This specific configuration allows you to achieve:

  • Greater shifting precision
  • Improved chain stability
  • Noise Reduction
  • Consistent performance even under heavy loads
  • Longer component life

Rounding out the system are the new stainless-steel dust covers, specifically designed for each derailleur, which were developed to further improve bearing protection and eliminate the need for additional spacers during installation.

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Road, gravel, and mountain bikes

One of the most interesting features of the ALPHA Pulley Wheels is the breadth of the lineup. CeramicSpeed has developed dedicated versions for the major Shimano and SRAM groupsets, covering virtually every segment of the performance market: road, gravel, and mountain biking.

Shimano Road Compatibility

  • Dura-Ace R9250 Di2 – 11-tooth upper / 11-tooth lower
  • Dura-Ace R9150 Di2 – 11 / 11
  • Ultegra R8150, R8050, R7150, and Shimano 105 – 11 / 11

Shimano Gravel and MTB Compatibility

  • GRX RX825 / RX820 – 11 / 13
  • GRX Di2 RX827 / RX822 – 13 / 13
  • XTR Di2, XT, SLX, and Deore 12-speed – 13 / 13
  • XTR M9100 – 13 / 13

SRAM Road Compatibility

RED E1 and Force E1 – 12 / 14
  • RED D1, Force D2/D1, and Rival E1/D1 – 12 / 12

SRAM Gravel E-MTB Compatibility

  • XPLR E1 and Transmission XX SL / XX / X0 / 90 / 70 – 14 / 16
  • Force XPLR D1 – 12 / 12
  • Eagle XX1, X01 AXS, and the mechanical Eagle lineup (GX, NX, SX) – 12 / 14

A dedicated ALPHA Pulley Wheels Service Kit is also available for maintenance, which includes non-contact seals and UFO TECH Pulley Wheel Oil.

A dedicated ALPHA Pulley Wheels Service Kit is also available for maintenance, which includes non-contact seals and UFO TECH Pulley Wheel Oil.

Performance Built to Last

The new ALPHA Pulley Wheels aren’t just designed to be more efficient. They’re designed to maintain their efficiency over time. This is the aspect that CeramicSpeed wanted to place at the heart of the project: to create a pulley capable of delivering high performance today, tomorrow, and after thousands of kilometers.

This philosophy is also reflected in the Lifetime Warranty, a guarantee that demonstrates the company’s confidence in the quality of its components and their ability to withstand any conditions of use.

Available starting today

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SHOP ON B2B

Sram

The perfect combination of precision and strength. Sram is a relentless pursuit to make the climb shorter, the road smoother, the curve tighter, the descent faster.
To give you the strongest, lightest, fastest bike on earth, to be the best.

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Factor

Our purpose is to pursue unparalleled excellence.
Factor Bikes was conceived from a commitment to innovation, speed and performance through advanced engineering; our soul lives in the union of technology and integration, while our heritage comes from motorsport and aviation.

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CERAMICSPEED

CeramicSpeed was born out of a dream to change the world of cycling. Today we can safely say that dream has turned into reality. For nearly two decades, we have revolutionized the highest level of professional cycling by constantly pushing the limits of drivetrain performance. Along the way, our efforts have helped bring home victories in Grand Tours, and World Championships.

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CORIMA

CORIMA's expertise and innovation in carbon and composite materials are globally recognized. They have been producing high-performance carbon wheels for over 30 years. They control all stages of the production process; from design to assembly and packaging. Corima wheels are handmade using prepreg carbon fibers, in their factory in LORIOL sur DRÔME, FRANCE.

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ZIPP

Zipp meets the customer's needs to lead them to peak performance, creates superlative quality components through innovative design and manufacturing, using the best materials and technologies available.

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MUC-OFF

Creators of the most innovative care products to keep both cyclists and their bicycles at their best, making them look brilliant after every performance!

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ARGON 18

Weight, stiffness, comfort. These are the three well-balanced properties from which Argon frames are born. A landmark brand that has created a tradition of technological innovation and design. Argon18 poses a challenge to the most demanding customers: it creates frames with the most sophisticated and high-performance materials.
Brand packed with a wide range of models, starting with those who are just approaching the world of two wheels to those who seek perfection

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ALMSTHRE

ALMSTHRE was created by three cyclists from San Diego, CA, whose relentless pursuit of endless adventures has always been in their blood. They seek to go further, explore more and connect deeply with nature, themselves and others. To feel alive, they believe that one should never stop exploring the unknown. They strive to get out of the comfort zone and always move forward. The art of doing is what motivates and inspires them, while passion is what fuels them. Therefore, when there is no end in sight, they keep pushing forward, because they are ALMSTHRE.

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BLAKC INC

Black Inc brand of components, starting from top-of-the-line wheels to handlebars, stem, and seatposts.Black Inc products are designed to perform at the highest level.

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HEALT THROUGH SPORT

Health Through Sport (HTS), founded in 2019, is an Italian company of experts in medicine and sports, based in Tuscany. The Top Shield line of functional, doping-free cosmeceuticals is designed to prevent and treat skin problems caused by saddle use (cycling, motorcycling, horseback riding). 

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HUTCHINSON

Hutchinson is a tire brand for the two-wheel world, always looking for new compounds for their tires. Hutchinson's range is vast starting from the road world to gravel and Mtb.

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KEYWIN

The world's lightest combination. Keywin pedals offer the largest footprint ensuring a unique and optimal thrust.

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LEZYNE

Lezyne is a leader in bicycle accessories, with engineering, award-winning design, and in-house production. The 2025 collection is the result of more than 16 years of innovation.

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QUARQ

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RAULER

A company that was born and has remained handcrafted, which is also well known abroad, having acquired several important European customers. RAULER frames and bicycles have in the past been used by some of the most glorious athletes and professional teams in the history of the sport including "SMEG" and "GIACOBAZZI." Among the many victories achieved by RAULER bicycles, the victory of the 100 km. at the Los Angeles (USA) Olympics in the year 1984 is definitely worth mentioning.

 

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RAVEMEN

RAVEMEN is a brand that combines a passion for cycling with the safety of cyclists. Their bike lights, inspired by car headlights, offer better visibility than traditional lights, reducing the risks caused by glare. With high quality materials and innovative design, RAVEMEN products are reliable, easy to use, and help ensure cyclists' safety on the road.

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TRUVATIV

Truvativ is a brand that specializes in handlebars, stem and seatposts for the off-road world. Top-of-the-line products provide you with lightweight, stiffness and safety

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TIME

TIME's mission is to help cyclists enjoy cycling by making the world's best and most innovative pedals.
TIME pedals give the rider the ability to take on any challenge, be the best performing and pedal the longest.

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TSA

Check out all the items from Tsa's house brand!

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TUFO

TUFO's philosophy focuses on specializing in the production of tubulars, working with world champions and elite cyclists. Products are made with high standards and strict quality control, with much of the production done by hand to ensure attention to detail. Each TUFO product is therefore "unique."

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HOLY MOTHER.

Brand specializing in sports nutrition. Products designed to provide maximum energy needed in any sports activity.
We develop our products with a scientific, performance-oriented approach, using the latest advances in sports nutrition

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SIGMA

Discover SIGMA's signature lights and GPS.

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SPORT FEEDBACK

In 2004, Doug Hudson launched Feedback Sports after the success of ChromeTM, starting with the Alpine Scale digital scale. In 2016, the range was expanded to include portable tools and trainers, which are popular with professionals. Today, the team in Golden, Colorado, develops more than 70 products for cyclists of all levels, creating stylish, lightweight and portable solutions for professionals and amateurs.
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JUICE LUBES

Juice Lube is in the business of cleaning and lubricating your bike. Effective products that allow you to clean and lubricate your bike to the fullest allowing your bike to perform as well as possible.

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MICHE

Solid roots rooted in the past and allowing us to look forward to a future completely oriented towards innovation.
Since 1919, cycling has been our passion. We produce high quality wheels and components proudly Made in Italy. We look ahead thanks to new technologies and the smart approach of Industry 4.0. A history spanning three generations and a bright future all to write.

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PEDAL PLATE

Pedal Plate offers two versions optimized for the two most popular pedal systems on the market Shimano SPD-SL and LOOK KEO. Now also available in MTB version for Shimano SPD pedals, Look X-Track and Cranckbrothers (Eggbeater, Candy).

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ROCKSHOX

Shock absorbers, forks, and telescopic seatposts everything you need to best equip your MTB.

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HAMMERHEAD

HAMMERHEAD is a new cyclocomputer designed for ambitious cyclists, with cutting-edge visualizations, next-generation technology and advanced customizations. It offers over 35 hours of battery life for uninterrupted exploration.

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