Out-of-Stock
Shimano 12S 8100-9200 / 8150-9250 CYCLINGCERAMIC OSPW
Price:
€269.00
Tax included
This first-generation CyclingCeramic cage for Shimano Ultegra Di2 RD-R8150 and Dura-Ace Di2 RD-R9250 is no longer sold. It has been replaced by the new 2026 Race and Pro: the same oversized 14/19T pulley concept and ceramic bearings, now with a more refined design, much easier installation, 4 spring-tension settings and broader Shimano road compatibility. Race: open pulleys, 4 colors and 98 g verified by Velo-Perso. Pro: solid pulleys and a cleaner, more aero-focused design.
Looking for the CyclingCeramic cage for Shimano Ultegra R8100 / RD-R8150 or Dura-Ace R9200 / RD-R9250?
You have reached the page for the first-generation model. It has now been replaced by the 2026 CyclingCeramic Race and 2026 CyclingCeramic Pro, with easier installation, broader compatibility and a much more refined design.
Which CyclingCeramic Shimano cage should you choose in 2026?
Our versatile choice
CyclingCeramic Race 2026
The Race is the natural replacement for this previous cage. It keeps the efficient 14/19T architecture while adding a cleaner design, 4 spring-tension positions and a much easier installation process.
- Open-machined 14/19T aluminium pulley wheels
- CyclingCeramic ceramic bearings
- Carbon cage
- 4 spring-tension settings
- 98 g verified on our 2026 black, red and blue models
- Several colors to personalize your bike
Fast road / aero bike
CyclingCeramic Pro 2026
The Pro uses CyclingCeramic’s current architecture and adds solid pulley wheels. Their closed design gives the cage a cleaner profile that particularly suits modern aero road bikes and speed-focused builds.
- Solid 14/19T pulley wheels
- CyclingCeramic ceramic bearings
- Carbon cage
- 4 spring-tension settings on current versions
- Cleaner, more closed profile
- Excellent balance between versatile road use and aero focus
What has actually changed compared with this previous generation?
| Feature | Previous generation | Race 2026 | Pro 2026 |
|---|---|---|---|
| Pulleys | Open 14/19T | Open 14/19T | Solid 14/19T |
| Bearings | Ceramic | Ceramic | Ceramic |
| Spring tension | 2 positions | 4 positions | 4 positions |
| Installation | Earlier, more demanding design | Removable stop, easier installation | Removable stop, easier installation |
| Shimano compatibility | Primarily RD-R8150 / RD-R9250 12-speed | Relevant Ultegra & Dura-Ace road 11- and 12-speed generations | Relevant Ultegra & Dura-Ace road 11- and 12-speed generations |
| Design | First 12-speed generation | Cleaner, modern and customizable | Solid pulleys, cleaner and more aero-oriented profile |
Much broader Shimano road compatibility
The key evolution of the current Race and Pro is not only visual. The same modern architecture can now cover the main premium Shimano road generations:
- Shimano Ultegra Di2 RD-R8150 – 12-speed (R8100-series groupset)
- Shimano Dura-Ace Di2 RD-R9250 – 12-speed (R9200-series groupset)
- Shimano Ultegra R8000 / R8050 series – 11-speed, relevant variants
- Shimano Dura-Ace R9100 / R9150 series – 11-speed, relevant variants
- Road cassettes up to 34T in CyclingCeramic’s intended configurations
Useful clarification: R8100 and R9200 are the current Ultegra and Dura-Ace groupset families; their corresponding Di2 rear derailleurs are the RD-R8150 and RD-R9250. This is why all four references are commonly searched for the same cage upgrade.
Why use oversized 14/19T pulley wheels?
The principle remains straightforward: a larger pulley wheel makes the chain articulate around a larger radius, reducing the bending angle at each link. Ceramic bearings complement this geometry by reducing rotational resistance.
This was already one of the strengths of the first-generation model. The 2026 Race and Pro keep that mechanical principle while improving what matters in everyday ownership: installation, adjustment, compatibility and finish.
Race or Pro: which one should you choose?
Choose the 2026 Race if you want the most versatile, lightweight and customizable option. Its open pulley wheels retain a technical mechanical look, several colors are available, and we measured 98 g on our 2026 black, red and blue stock.
Choose the 2026 Pro if your bike is focused on speed, if you prefer a clean modern build or if you want a more closed visual profile. Its solid pulley wheels give it a more integrated, aero-oriented appearance while remaining fully suitable for a versatile road bike.
Velo-Perso.com’s review
This previous cage was already a strong performance upgrade, but the current versions are more complete. The core mechanical idea has not changed: CyclingCeramic keeps the oversized 14/19T pulleys and ceramic bearings that made the original product worthwhile. What has improved is everything around it: the 2026 generation is easier to install, easier to tune, more versatile across Shimano road generations and much better finished. For a versatile road bike, we favour the Race. For an aero road bike or a cleaner, more integrated build, the Pro with solid pulleys is particularly coherent.
Installation tips for the current Race and Pro
- The current removable-stop design makes spring handling significantly easier than on early generations.
- A longer chain than with the stock Shimano cage is generally required; final chain length must be checked on the bike.
- Set the B-tension after installation to obtain the correct gap between the upper pulley and cassette.
- Check indexing across the full cassette afterwards.
- The 4 spring-tension positions allow finer adjustment according to intended use.
Specifications of the previous cage shown on this page
If you already own this model and need to identify it, the previous generation used the following specification:
- Main compatibility: Shimano Ultegra Di2 RD-R8150 and Dura-Ace Di2 RD-R9250
- Drivetrain: Shimano road 12-speed
- Pulley wheels: 14T upper / 19T lower
- Machined aluminium pulley wheels
- UD carbon cage
- CyclingCeramic ceramic bearings
- 2 spring-tension positions
- Cassette: up to 34T in the intended configuration
Frequently asked questions
Is this previous Shimano 12-speed cage still available?
No. At Velo-Perso it has been replaced by the current CyclingCeramic Race and Pro. This page remains available to identify the previous generation and direct you to its current replacement.
What is the direct replacement?
The 2026 CyclingCeramic Race is the most natural successor: open 14/19T pulleys, ceramic bearings, a carbon cage, 4 spring-tension settings and several colors.
What is the difference between Race and Pro?
Race uses open pulley wheels and focuses on versatility, weight and customization. Pro uses solid pulley wheels for a cleaner appearance and a more aero-oriented profile.
Is it compatible with Shimano Ultegra R8100 / R8150?
Yes, with the RD-R8150 Di2 rear derailleur from the Ultegra R8100 family.
Is it compatible with Shimano Dura-Ace R9200 / R9250?
Yes, with the RD-R9250 Di2 rear derailleur from the Dura-Ace R9200 family.
Can I use the new Race or Pro on an 11-speed Shimano groupset?
Yes, on the relevant Ultegra R8000/R8050 and Dura-Ace R9100/R9150 generations in CyclingCeramic’s intended configurations.
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