Name: Shimano MT800 brzdový kotouč Centerlock
Brand: Shimano
SKU: 2e8ecaac28540889ac4d7a277149870f
Price: 30.4 EUR
Availability: InStock

Powerful brake discs for road and off-road use

Shimano's compact and lightweight RT-MT800 brake discs are characterized by particularly fast heat dissipation thanks to the ICE TECHNOLOGIES FREEZA heat management system. The centerlock design makes installing and removing brake discs child's play.

Highlights

Advanced heat sync design reduces braking performance degradation
A new design of the brake disc improves heat dissipation and reduces the loss of braking power
Easy brake disc assembly through toothing and lockring
Compatible with plastic and metal coverings (narrow design)

specification

specification	I-RTMT800SSI	I-RTMT800SI	I-RTMT800ME	I-RTMT800LE
material	stainless steel	stainless steel	stainless steel	stainless steel
construction	2 parts	2 parts	2 parts	2 parts
Gearing	Internally toothed	Internally toothed	Externally toothed	Externally toothed
Attachment	Centerlock	Centerlock	Centerlock	Centerlock
diameter	140 mm	160 mm	180 mm	203 mm
Covering thickness	1.80 mm	1.80 mm	1.80 mm	1.80 mm
weight	approx. 88 g	approx. 108 g	approx. 132 g	approx. 163 g

Technologies used

In this chapter we explain the technologies that the manufacturer uses for this product.

ICE-TECH
Fading, which can occur in the brake disc and pad when braking continuously on long descents, impairs braking performance. Shimano introduced ICE TECHNOLOGIES brake discs and ICE TECHNOLOGIES brake pads to create a cooling technology for consistently high braking performance. The brake disc with its 3-layer sandwich structure made of stainless steel, aluminum and stainless steel offers better heat dissipation. The brake pads also have cooling fins. The construction of the disc in connection with the cooling fins results in a longer service life of the pad, less braking noise, less fading and lower weight.

ICE-TECH FREEZA
ICE TECHNOLOGIES, in combination with the FREEZA brake disc construction, ensures rapid heat dissipation. This leads to a more even braking performance under extreme conditions, extends the service life of the brake lining and reduces the loss of braking force and braking noise.

scope of delivery

1 x Shimano RT-MT800 brake disc (see item description for details)
1 x lock ring

test verdict

Test result: "Grade 1.9" in the 05/2022 tour (p. 52)

Shimano RT-MT800 brake disc with lockring with external toothing

The redesigned brake discs with ICE TECHNOLOGY FREEZA heat dissipation significantly reduce temperatures, ensuring consistent braking performance and a longer brake pad life. The design, with an aluminum core sandwiched between two stainless steel layers, effectively dissipates heat via the integrated cooling fins.

Highlights

Stable and versatile braking performance under the toughest conditions
First-class and consistent braking performance
New ICE TECHNOLOGIES FREEZA construction for even faster heat dissipation
140mm and 160mm optimal for road bike / gravel
Locking ring type with external serration

Technical specifications

Assembly:
Center Lock
Diameter:
140 mm
Type:
2-piece
Disc material:
Sandwich composite made of stainless steel outside with aluminum core
Material Spider:
aluminum

Technologies used

Ice-Tech FREEZA

Shimano Ice Technologies ensure rapid heat dissipation from your disc brake. The brake pads are equipped with aluminum cooling fins. The brake disc features a sandwich construction, with stainless steel enclosing an aluminum core. The stainless steel on both sides ensures long-lasting durability, while the aluminum dissipates heat. FREEZA is the advanced brake disc technology, with additional fins in the aluminum of the disc for even better heat dissipation. This cooling technology creates consistently high braking performance and longer brake pad durability, while reducing fading and brake noise.

Scope of delivery

1 x Shimano RT-MT800 Center-Lock brake disc including lock ring

Shimano brake disc RT-MT800 Center Lock external toothing

The redesigned brake discs with ICE TECHNOLOGY FREEZA heat dissipation significantly reduce temperatures, ensuring consistent braking performance and a longer brake pad life. The design, with an aluminum core sandwiched between two stainless steel layers, effectively dissipates heat via the integrated cooling fins.

Highlights

Stable and versatile braking performance under the toughest conditions
First-class and consistent braking performance
New ICE TECHNOLOGIES FREEZA construction for even faster heat dissipation
140mm and 160mm optimal for road bike / gravel
Locking ring type with external serration

Technical specifications

Mounting: Center Lock
Diameter: 160 mm
Design: 2-part
Disc material: Sandwich composite made of stainless steel outside with aluminum core
Spider material: aluminum

Technologies used

Ice-Tech FREEZA

Shimano Ice Technologies ensure rapid heat dissipation from your disc brake. The brake pads are equipped with aluminum cooling fins. The brake disc features a sandwich construction, with stainless steel enclosing an aluminum core. The stainless steel on both sides ensures long-lasting durability, while the aluminum dissipates heat. FREEZA is the advanced brake disc technology, with additional fins in the aluminum of the disc for even better heat dissipation. This cooling technology creates consistently high braking performance and longer brake pad durability, while reducing fading and brake noise.

Scope of delivery

1 x Shimano RT-MT800 Center-Lock brake disc including lock ring

Shimano MT800 Brake Disc – Maximum Control for Your MTB Adventure

Don’t want to make compromises on the trail? The Shimano MT800 brake disc with a 180 mm diameter and Centerlock external toothing delivers reliable braking power, even when things really heat up. Thanks to state-of-the-art Ice-Tech FREEZA technology, you’ll enjoy consistent performance and extended brake pad life – for more fun and safety on every ride.

Developed for Sporty Mountain Bikers

Whether it’s steep descents, technical trails, or fast XC laps: The Shimano MT800 brake disc ensures confident deceleration and full control. The innovative sandwich construction made from stainless steel and aluminum guarantees effective heat dissipation. The integrated cooling fins prevent fading even on long descents – so you always stay in control.

What Does OEM/BULK Mean?

Variants marked as BULK are so-called OEM products (Original Equipment Manufacturer). Like the regular products, they are delivered directly to bicycle manufacturers and come to you without retail packaging. Technically and in terms of quality, they are identical to the retail version – so you get full Shimano quality at an attractive price – with no compromises in performance or durability.

Specification

Feature	Description
Mount	Centerlock (external toothing)
Construction	2-piece, sandwich construction
Diameter	180 mm
Material	Stainless steel outer, aluminum core
Cooling Technology	Ice-Tech FREEZA with cooling fins
Compatible Pads	Metal and resin
Weight	approx. 132 g (manufacturer’s specification)
Group	Deore XT / Ultegra / GRX
Color	Silver-black
OEM Version	If marked as BULK, yes – original Shimano OEM equipment

Scope of Delivery

1 x Shimano MT800 brake disc 180 mm
1 x Lockring (external toothing)

Accessory Recommendations

Accessory	Why You Need It
Shimano Brake Pads G03A Resin	For quiet braking and optimal everyday performance, especially in dry conditions.
Shimano Brake Pads G04S Metal	For maximum durability and longevity, ideal for long descents and wet conditions.
Shimano TL-LR15 Lockring Tool	The right special tool for quick and safe installation and removal of your Centerlock brake disc.
Shimano Disc Protector SM-RT800	Protects your brake disc from damage during transport or maintenance.
Shimano Brake Bleeding Kit TL-BT03-S	For perfect braking performance: regular bleeding ensures a crisp brake feel and maximum safety.

Powerful brake discs for road and off-road use

Shimano's compact and lightweight RT-MT800 brake discs are characterized by particularly fast heat dissipation thanks to the ICE TECHNOLOGIES FREEZA heat management system. The centerlock design makes installing and removing brake discs child's play.

Highlights

Advanced heat sync design reduces braking performance degradation
A new design of the brake disc improves heat dissipation and reduces the loss of braking power
Easy brake disc assembly through toothing and lockring
Compatible with plastic and metal coverings (narrow design)

specification

specification	I-RTMT800SSI	I-RTMT800SI	I-RTMT800ME	I-RTMT800LE
material	stainless steel	stainless steel	stainless steel	stainless steel
construction	2 parts	2 parts	2 parts	2 parts
Gearing	Internally toothed	Internally toothed	Externally toothed	Externally toothed
Attachment	Centerlock	Centerlock	Centerlock	Centerlock
diameter	140 mm	160 mm	180 mm	203 mm
Covering thickness	1.80 mm	1.80 mm	1.80 mm	1.80 mm
weight	approx. 88 g	approx. 108 g	approx. 132 g	approx. 163 g

Technologies used

In this chapter we explain the technologies that the manufacturer uses for this product.

ICE-TECH
Fading, which can occur in the brake disc and pad when braking continuously on long descents, impairs braking performance. Shimano introduced ICE TECHNOLOGIES brake discs and ICE TECHNOLOGIES brake pads to create a cooling technology for consistently high braking performance. The brake disc with its 3-layer sandwich structure made of stainless steel, aluminum and stainless steel offers better heat dissipation. The brake pads also have cooling fins. The construction of the disc in connection with the cooling fins results in a longer service life of the pad, less braking noise, less fading and lower weight.

ICE-TECH FREEZA
ICE TECHNOLOGIES, in combination with the FREEZA brake disc construction, ensures rapid heat dissipation. This leads to a more even braking performance under extreme conditions, extends the service life of the brake lining and reduces the loss of braking force and braking noise.