Shimano RT-MT800 Center Lock Brake Rotor for XT / Ultegra w/ Internal Teeth - silver-black/180 mm

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

Item number: 71448
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10

The RT-MT800 brake rotor by Shimano stands for perfect heat dissipation


The Shimano RT-MT800 brake rotor with internal serration uses Ice Technologies FREEZA heat dissipation to further reduce temperatures, 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 internal teeth: compatible with 9/10 mm quick release and 12 mm thru-axle
  • for 15 mm and 20 mm thru-axles, use the SM-HB20 lockring instead

Features:

  • great heat dissipation due to innovative design
  • reduced fading
  • easy installation with Spline Mount and lockring (internal gearing)
  • 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-RTMT800SSI
160 mm:
I-RTMT800SI
180 mm:
I-RTMT800MI
203 mm:
I-RTMT800LI

Contents:

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


Weight:

  • silver-black/140 mm: 88 g
  • silver-black/160 mm: 108 g
  • silver-black/180 mm: 132 g
  • silver-black/203 mm: 163 g
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.85 / 5.00

Models:

  • silver-black/140 mm, in stock
    33.75€
  • silver-black/160 mm, sold out
    34.61€
  • silver-black/180 mm, in stock
    32.02€
  • silver-black/203 mm, in stock
    49.33€

Customer Reviews (10)

4.7

Customer Reviews (10)

4.7/5.0
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Give us your opinion on this product.

by Oliver K. on 25.02.2024
verified purchase
item: silver-black/180 mm

I used the 180mm version with Shimano Deore XT calipers on a touring bike with a trailer for the rear wheel. On longer descents the break works hard, so I wanted a better cooling product.

It works as advertised, I can't report anything special.

Make sure to change the rotor when it reaches the 1.5 mm width tolerance limit, to be sure you don't reach the inner aluminium sandwiched between the steel outer parts.

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