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SHIMANO RT-EM810 ICE TECHNOLOGIES FREEZA brake disc incl. magnet

From 54.90€ * RRP 72.95€ * (24.74% Saved)

Prices incl. VAT plus shipping costs

  • 4975-003
  • IRTEM810SI
  • 4550170442781


The SHIMANO brake disc RT-EM810 is a brake disc designed for e-bikes with STEPS drive system... more

The SHIMANO brake disc RT-EM810 is a brake disc designed for e-bikes with STEPS drive system and mounted on the rear wheel. Therefore, the magnet for the sensor SM-DUE11 is already integrated. For the front wheel, the counterpart without magnet can still be used.

This brake disc contains almost all the technology that Shimano currently has to offer. On the one hand, there is the ICE TECHNOLOGIES sandwich structure of stainless steel layers outside with an aluminum core, which absorbs heat better during braking and lowers the surface temperature up to 100°C. On the other hand, it has cooling fins in the form of a sheet - called: FREEZA. This achieves a reduction in temperature of a further 50°C.

Considered as a whole, all these features result in a stable brake with consistently high performance that can be relied on in any situation, especially on long downhill runs. Fading as well as wear are also reduced to a minimum.

The brake disc is compatible with both organic (resin) brake pads and sintered (metal) pads.


  • Incl. magnet for STEPS
  • ICE TECH brake disc
  • Available with Ø 160 | 180 | 203 mm
  • Center Lock



The brake disc consists of a three-layer sandwich structure of stainless steel on the outside around a core of aluminum. It radiates heat better and reduces the surface temperature from 400°C to 300°C, for example.


Thanks to a larger surface area for heat distribution, the brake disc achieves a 50 °C temperature reduction. As a result, the braking force is increased by 20 percent and the service life of the brake pad is extended by 20 percent.

If you have any questions regarding compatibilty or availability, do not hesitate to contact us.

Manufacturer: Shimano
Weight: approx. 116 g (160mm) | approx. 144 g (180mm) | approx. 182 g (203mm) - manufacturer's specification
Item: SHIMANO RT-EM810 ICE TECHNOLOGIES FREEZA brake disc incl. magnet
Scope of delivery: 1x SHIMANO RT-EM810 ICE TECHNOLOGIES FREEZA brake disc incl. magnet
Specifications: ICE TECHNOLOGIES FREEZA | incl. magnet for Steps SM-DUE11
Maker's ref. no.: I-RTEM810SI | I-RTEM810ME | I-RTEM810LE
Material: Stainless steel/aluminum/stainless steel
Brake disc diameter: 160mm | 180mm | 203mm
Brake disc mount: Center-Lock
EAN: 4550170442781 | 4550170445416 | 4550170445423
Lock ring: External toothing
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