The SHIMANO RT-EM300 is a wide 180 mm brake disc with a CENTER LOCK mount, designed for bikes fitted with a speed sensor system and providing effective braking in a variety of riding conditions.
Reliable braking in all conditions
The SHIMANO RT-EM300 disc is designed to provide adequate braking power and stable brake system performance. The disc’s wide design is ideal for e-bikes, where effective and predictable braking is particularly important. The RT-EM300 model is designed to work with specific SHIMANO brake calipers.
CENTER LOCK – quick and convenient installation
The CENTER LOCK mounting system allows for quick and easy fitting and removal of the disc using a spline and the appropriate locking ring. The disc is not compatible with metal brake pads. Before purchasing, please ensure that the selected disc and mounting type are compatible with your braking system.
Specifications:
| Manufacturer | SHIMANO |
| Model | RT-EM300 |
| Product code | EERTEM300M |
| EAN | 4550170443153 |
| Diameter | 180 mm |
| Mounting | CENTER LOCK |
| Type | Wide brake disc |
| Disc nut | With locking ring, internal and external tabs |
| Compatibility with metal brake pads | No |
| Recommended brake sets | MT520 / MT500 / MT420 / MT400 |
