Shimano RT-MT800 Center Lock Brake Rotor for XT w/ External Teeth

Shimano's RT-MT800 brake rotor stands for great heat dissipation

The Shimano RT-MT800 external serration brake rotor with lockring reduces temperatures even further through Ice Technologies FREEZA heat dissipation, resulting in more consistent braking performance. The life of the brake pads is also extended. The RT-MT800's proven sandwich construction with an aluminium core between two layers of stainless steel ensures efficient heat dissipation via the integrated radiation fins.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Technical Information:

Mount:

Center Lock

Diameter:

140 mm, 160 mm, 180 mm, 203 mm

Design:

2-piece

Rotor Material:

stainless steel outer and aluminium core sandwich construction

Spider Material:

aluminium

Approved For:

Brake Compatibility:

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-U8000, BR-U8020, BR-S7000, BR-S700, BR-R9270**, BR-R9170*, BR-R8170*, BR-R8070*, BR-R7170*, BR-R7070*, BR-4770*, BR-RS805*, BR-R785*, BR-RS785*, BR-RS505*, BR-RS405*, BR-RX820*, BR-RX820-LE*, BR-RX810*, BR-RX400*

Brake Pad Compatibility:

sintered***, organic

* not compatible with 203 mm (BR-R9170-R also not compatible with 180 mm)
** only 160 mm
*** with BR-S700 and BR-S7000 only organic

Compatibility:

• for brake pads with narrow pad shape
• lockring with external gear teeth: also compatible with 15 mm and 20 mm thru-axles (as well as with 12 mm thru-axles and quick releases)

Features:

• great heat dissipation due to innovative design
• reduced fading
• easy installation with Spline Mount and lockring (external serration)
• lacquered spider, polished rotor, lockring made of aluminium, anodised

Technology:

Ice Tech FREEZA
Shimano Ice Technologies provide a fast heat dissipation at your disc brake. The brake pads are equipped with aluminium cooling fins. The brake rotor is constructed using a sandwich technique in which stainless steel encloses an aluminium core. The stainless steel on both flanks ensures long durability, the aluminium allows heat dissipation. FREEZA is the further development of the brake rotor, in which additional ribs in the aluminium provide even better heat compensation. This cooling technology creates consistently high performance and longer brake pad durability while reducing fading and brake noise.

Manufacturer Numbers:

140 mm:

I-RTMT800SSE

160 mm:

I-RTMT800SE

180 mm:

I-RTMT800ME

203 mm:

I-RTMT800LE

Contents:

• 1 x Shimano RT-MT800 brake rotor
• 1 x lockring