Shimano RT-CL800 Center-Lock Disc Rotor
Product information "RT-CL800 Center-Lock Disc Rotor"
SHIMANOs compact and lightweight RT-CL800 brake discs feature particularly fast heat dissipation thanks to ICE TECHNOLOGIES FREEZA heat management system. SHIMANOs CENTER LOCK design makes the installation and removal of brake discs very easy.

Ice-Tech FREEZA
SHIMANO’s ICE TECHNOLOGIES has realized the ultimate clad rotor, incorporating aluminum fins for enhanced heat control. With an increased surface area for heat dispersion, the rotor achieves a 50°C reduction in heat. This in turn generates a 20% increase in braking force durability and a 20% longer pad life.
Center-Lock System
The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
Features - Shimano Center-Lock Disc Rotor RT-CL800
- High-performance and consistent brake performance
- New ICE TECHNOLOGIES FREEZA construction for boosting heat dissipation
- 140mm and 160mm optimal for Road / Gravel
- Lockring type with internal (Internal Serration) or external (External Serration) toothing
Product features
- Use: Road, Gravel, MTB
- Group: Ultegra, GRX, XT
- Model: RT-CL800
- Disc mount: Center-Lock
- Pad compatibility: Metal / Resin
Diameter (choose variant)
- 140mm intern
- 140mm extern
- 160mm intern
- 160mm extern
- 180mm intern
- 180mm extern
- 203mm intern
- 203mm extern
Material
- Rotor: Stainless steel / Aluminum
- Lockring: Aluminum
Gewicht (manufacturer information)
- approx. 97g without Lockring (140mm)
- approx. 114g without Lockring (160mm)
- approx. 139g without Lockring (180mm)
- approx. 169g without Lockring (203mm)
- approx. 8g (Lockring intern)
- approx. 9g (Lockring extern)
Scope of delivery
- 1 x Shimano RT-CL800 Center-Lock Disc Rotor incl. Lockring
Technologies

Ice-Tech FREEZASHIMANO’s ICE TECHNOLOGIES has realized the ultimate clad rotor, incorporating aluminum fins for enhanced heat control. With an increased surface area for heat dispersion, the rotor achieves a 50°C reduction in heat. This in turn generates a 20% increase in braking force durability and a 20% longer pad life.
Center-Lock System
The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
- Manufacturer number: IRTCL800SSI
- EAN: 4550170232733
- UPC: 192790232737
Manufacturer:
SHIMANO INC.3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
590-8577 Osaka
Japan
https://www.shimano.com
Person responsible in the EU:
Shimano Europe BVHigh Tech Campus 92
NL-5656 Eindhoven
Netherlands
[email protected]
https://www.shimano.com
Shimano RT-CL800 Center-Lock Disc Rotor
SHIMANOs compact and lightweight RT-CL800 brake discs feature particularly fast heat dissipation thanks to ICE TECHNOLOGIES FREEZA heat management system. SHIMANOs CENTER LOCK design makes the installation and removal of brake discs very easy.

Ice-Tech FREEZA
SHIMANO’s ICE TECHNOLOGIES has realized the ultimate clad rotor, incorporating aluminum fins for enhanced heat control. With an increased surface area for heat dispersion, the rotor achieves a 50°C reduction in heat. This in turn generates a 20% increase in braking force durability and a 20% longer pad life.
Center-Lock System
The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
Features - Shimano Center-Lock Disc Rotor RT-CL800
- High-performance and consistent brake performance
- New ICE TECHNOLOGIES FREEZA construction for boosting heat dissipation
- 140mm and 160mm optimal for Road / Gravel
- Lockring type with internal (Internal Serration) or external (External Serration) toothing
Product features
- Use: Road, Gravel, MTB
- Group: Ultegra, GRX, XT
- Model: RT-CL800
- Disc mount: Center-Lock
- Pad compatibility: Metal / Resin
Diameter (choose variant)
- 140mm intern
- 140mm extern
- 160mm intern
- 160mm extern
- 180mm intern
- 180mm extern
- 203mm intern
- 203mm extern
Material
- Rotor: Stainless steel / Aluminum
- Lockring: Aluminum
Gewicht (manufacturer information)
- approx. 97g without Lockring (140mm)
- approx. 114g without Lockring (160mm)
- approx. 139g without Lockring (180mm)
- approx. 169g without Lockring (203mm)
- approx. 8g (Lockring intern)
- approx. 9g (Lockring extern)
Scope of delivery
- 1 x Shimano RT-CL800 Center-Lock Disc Rotor incl. Lockring
Technologies

Ice-Tech FREEZASHIMANO’s ICE TECHNOLOGIES has realized the ultimate clad rotor, incorporating aluminum fins for enhanced heat control. With an increased surface area for heat dispersion, the rotor achieves a 50°C reduction in heat. This in turn generates a 20% increase in braking force durability and a 20% longer pad life.
Center-Lock System
The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
- Manufacturer number: IRTCL800SSI
- EAN: 4550170232733
- UPC: 192790232737
Manufacturer:
SHIMANO INC.3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
590-8577 Osaka
Japan
https://www.shimano.com
Person responsible in the EU:
Shimano Europe BVHigh Tech Campus 92
NL-5656 Eindhoven
Netherlands
[email protected]
https://www.shimano.com
Evaluations
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Alex K.
Sehen auf den Bildern spitze aus doch in echt einfach ein Traum! Die neueste Variante dieser Ultegra-Discs legt nochmal ne gute Schippe drauf. Das Design vermittelt sofort Geschwindigkeit und Eleganz zugleich. Empfehle Sie zwingend mit Metallbelägen zu fahren, habe auch Resin ausprobiert, doch die werden der starken Bremsleistung dieser Discs einfach nicht gerecht.
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