Shimano RT-MT800 Center-Lock Disc Rotor
Product information "RT-MT800 Center-Lock Disc Rotor"
Features - Shimano XT / Ultegra / GRX Center-Lock Disc Rotor RT-MT800
- Stable and versatile brake performance in the most demanding conditions
- 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: MTB, Road, Gravel
- Group: XT, Ultegra, GRX
- Model: RT-MT800
- Disc mount: Center-Lock
- Pad compatibility: Metal / Resin (with BR-S700 and BR-S7000 Resin only!)
Diameter (choose variant)
- 140mm intern (RT-MT800-SSI)
- 140mm extern (RT-MT800-SSE)
- 160mm intern (RT-MT800-SI)
- 160mm extern (RT-MT800-SE)
- 180mm intern (RT-MT800-MI)
- 180mm extern (RT-MT800-ME)
- 203mm intern (RT-MT800-LI)
- 203mm extern (RT-MT800-LE)
Compatibility - Brake Caliper
- BR-M9100*, BR-M9120, BR-M9110-R**, BR-M9000, BR-M9020, BR-M8100, BR-M8120, BR-M8110-R*, BR-M8000, BR-M8020, BR-M7100, BR-M7120, BR-M7110-R*, BR-M7000, BR-M6100, BR-M6120, BR-M6000, BR-MT520, BR-MT420, BR-M820, BR-M640, BR-S7000, BR-S700, BR-R9270**, BR-R9170*, BR-R8170*, BR-R8070*, BR-R7070*, BR-4770*, BR-RS805*, BR-R785*, BR-RS785*, BR-RS505*, BR-RS405*, BR-RX810*, BR-RX400*
** only compatible with 140mm and 160mm
Material
- Rotor: Stainless steel / Aluminum
- Lockring: Aluminum
Weight (manufacturer information)
- 140mm | 88g without Lockring
- 160mm | 108g without Lockring
- 180mm | 132g without Lockring
- 203mm | 164g without Lockring
Scope of delivery
- 1 x Shimano RT-MT800 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.
Shimano's 12-speed DEORE XT M8100
First lock: Shimano Deore XT M8100
- Manufacturer number: IRTMT800LE
3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
590-8577 Osaka
Japan
https://www.shimano.com
High Tech Campus 92
NL-5656 Eindhoven
Netherlands
[email protected]
https://www.shimano.com
Shimano RT-MT800 Center-Lock Disc Rotor
Features - Shimano XT / Ultegra / GRX Center-Lock Disc Rotor RT-MT800
- Stable and versatile brake performance in the most demanding conditions
- 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: MTB, Road, Gravel
- Group: XT, Ultegra, GRX
- Model: RT-MT800
- Disc mount: Center-Lock
- Pad compatibility: Metal / Resin (with BR-S700 and BR-S7000 Resin only!)
Diameter (choose variant)
- 140mm intern (RT-MT800-SSI)
- 140mm extern (RT-MT800-SSE)
- 160mm intern (RT-MT800-SI)
- 160mm extern (RT-MT800-SE)
- 180mm intern (RT-MT800-MI)
- 180mm extern (RT-MT800-ME)
- 203mm intern (RT-MT800-LI)
- 203mm extern (RT-MT800-LE)
Compatibility - Brake Caliper
- BR-M9100*, BR-M9120, BR-M9110-R**, BR-M9000, BR-M9020, BR-M8100, BR-M8120, BR-M8110-R*, BR-M8000, BR-M8020, BR-M7100, BR-M7120, BR-M7110-R*, BR-M7000, BR-M6100, BR-M6120, BR-M6000, BR-MT520, BR-MT420, BR-M820, BR-M640, BR-S7000, BR-S700, BR-R9270**, BR-R9170*, BR-R8170*, BR-R8070*, BR-R7070*, BR-4770*, BR-RS805*, BR-R785*, BR-RS785*, BR-RS505*, BR-RS405*, BR-RX810*, BR-RX400*
** only compatible with 140mm and 160mm
Material
- Rotor: Stainless steel / Aluminum
- Lockring: Aluminum
Weight (manufacturer information)
- 140mm | 88g without Lockring
- 160mm | 108g without Lockring
- 180mm | 132g without Lockring
- 203mm | 164g without Lockring
Scope of delivery
- 1 x Shimano RT-MT800 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.
Shimano's 12-speed DEORE XT M8100
First lock: Shimano Deore XT M8100
- Manufacturer number: IRTMT800LE
3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
590-8577 Osaka
Japan
https://www.shimano.com
High Tech Campus 92
NL-5656 Eindhoven
Netherlands
[email protected]
https://www.shimano.com
Grandissime prestazioni..mai difficoltà.Bike discount impeccabile come al solito
Are the splines of disc rotor the same for both internal and external? I need an external but you do not have in stock
sehr gute Bremsleistung
Hat alles perfekt geklappt. Ich brauche bitte eine Rechnung für diesen Kauf.
Mit die beste Idee die Bremse aufzurüsten. Bringt echt viel vor allem wenn man zu den schwereren Bikern gehört.
Super Bremskraft und Kühlung. In der Tat ist die Kühlung so gut, dass bei kürzeren Abfahrten die Bremse gar nicht wirklich warm wird. Spürbar an anfangs lauterem Geräusch und weniger Power an meiner SLX 4-Kolbenbremse.
Great rotors. Great braking. Took for a trekking bike with 28 inch wheels.
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