Shimano RT-EM300 Disc Rotor
Best dependable stopping power for everyday cycling enthusiasts.
This rotor is built specifically to handle the extra weight and speed of electric bikes, offering the consistent stopping power needed for heavier rigs. While it locks you into a specific mounting system, the trade-off is a rock-solid, hassle-free installation that stays secure ride after ride.
$51.47
at
Bicycle Addiction
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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.
Heat Dissipation
Robust construction effectively manages thermal buildup during long, technical descents.
Installation Ease
Centerlock system makes rotor swaps incredibly fast and frustration-free.
E-Bike Durability
Engineered specifically to withstand the higher torque and weight of e-bikes.
System Compatibility
Seamlessly integrates with Shimano braking ecosystems for optimal performance.
Build Quality
Solid, reliable manufacturing that inspires confidence on every ride.
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
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Ask Metto anything about the Shimano RT-EM300 Disc Rotor before you decide.