# Disque de frein VTT Shimano STEPS E-Bike RT-EM300 Centerlock

**Brand:** Shimano
**Category:** Sport & fitness
**Code (GTIN/SKU):** 4550170443139
**Canonical URL:** https://openreviews.io/en/reviews/shimano/disque-de-frein-vtt-shimano-steps-e-bike-rt-em300-centerlock-4550170443139

## Rating: 4.5/5 ★★★★☆ — 18 reviews analyzed
_Confidence: high_

## At a glance

Disque de frein VTT Shimano STEPS E-Bike RT-EM300 Centerlock reviews: 4.5/5 based on 18 analyzed reviews from 3 sites, updated November 2, 2026.

Praised: braking power. Criticized: pad compatibility and noise nuisance.

18 reviews analyzed, all published on other sites.
Other sites: 3 sources, 18 reviews, average rating 4.5/5.
How we count reviews: https://openreviews.io/en/methodology

## AI summary

This Centerlock brake disc is designed to meet the demands of e-MTB electric bikes. It offers excellent braking power that proves particularly effective and reassuring in all weather conditions and on different types of trails. However, some users report sometimes noisy operation and average braking performance. Furthermore, this model presents an important technical constraint since it is incompatible with metal brake pads.

## Strengths

- **Braking power** — This disc ensures effective and consistent braking regardless of weather conditions.

## Weaknesses

- **Pad compatibility** — This model does not support the use of metallic pads.
- **Noise nuisance** — Several reports mention noise or squeaking during braking phases.

## Frequently asked questions

- Is it compatible with resin pads?
- Is this brake disc quiet?
- Is it suitable for intensive e-MTB use?
- Is the Centerlock mounting system robust?

---
_Source: OpenReviews — https://openreviews.io/en/reviews/shimano/disque-de-frein-vtt-shimano-steps-e-bike-rt-em300-centerlock-4550170443139_