Shimano RT-MT900 Center Lock Brake Rotor for XTR w/ External Teeth

The Shimano XTR RT-MT900 brake rotor with externally toothed lockring

This RT-MT900 Center-Lock brake rotor by Shimano comes with a lockring that has a new type of external toothing. Based on the successful Ice Tech FREEZA rotors, the model has been revised and further developed, both in terms of heat dissipation and weight reduction. The 180 mm or 203 mm diameter versions are aimed specifically at enduro riders, while the 160 mm brake rotor is suitable for cross country racing.

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:

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:

• performance indicator: Ultimate (level 3 out of 3)
• stable and versatile braking performance under the toughest conditions
• revised Ice Technologies FREEZA design for even faster heat dissipation
• heat-diffusing lacquer
• 160 mm optimal for cross country in terms of low weight
• 180 and 203 mm optimal for enduro
• lacquered spider, polished rotor, lockring made of aluminium, anodised (external gear teeth)

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:

160 mm:

I-RTMT900SE

180 mm:

I-RTMT900ME

203 mm:

I-RTMT900LE

Contents:

• 1 x Shimano RT-MT900 brake rotor
• 1 x lockring with external teeth