Who it's for

  • Everyday riders seeking consistent braking on a budget
  • E-bike owners prioritizing safety and specific component compatibility
  • Commuters and casual cyclists needing reliable, fuss-free braking

Who should skip it

  • Aggressive trail riders or downhill enthusiasts
  • Performance-focused cyclists and weight-conscious racers
  • Riders prioritizing bike aesthetics and premium component looks

Performance breakdown

Stopping Power

Delivers consistent, predictable braking force even under heavy e-bike loads.

Excellent

Heat Dissipation

Robust construction effectively manages thermal buildup during long, technical descents.

Excellent

Installation Ease

Centerlock system makes rotor swaps incredibly fast and frustration-free.

Excellent

E-Bike Durability

Engineered specifically to withstand the higher torque and weight of e-bikes.

Excellent

System Compatibility

Seamlessly integrates with Shimano braking ecosystems for optimal performance.

Excellent

Build Quality

Solid, reliable manufacturing that inspires confidence on every ride.

Excellent

Key Specs

Diameter

203 mm

E-bike Rated

Yes

Mounting Type

Centerlock

Compatible Brake System

Shimano

Model Number

ERTEM300L

UPC

192790443140

Know before you buy

Still have a question?

Ask Metto anything about the Shimano RT-EM300 Disc Rotor before you decide.

Shimano RT-EM300 Disc Rotor

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Bicycle Addiction
Bicycle Addiction
In stock
$51.47
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