EJ's Pro Semi-Metallic Disc Brake Pads are engineered for riders who want awesome braking power with smoother modulation than full-metallic pads. Sitting between standard Semi-Metallic and Sintered this compound balances bite, control, and heat stability for demanding road, gravel, and e-bike riding. Fully e-bike approved.
🔧 Compatibility
Compatible with Shimano disc brake calipers that use L-Type or K-Type pads:
Pad Type
Series
Caliper Model
Typical Use
L / K-Type
Dura-Ace Di2
BR-R9270, BR-R9170
Road racing (dry)
L / K-Type
Ultegra Di2
BR-R8170, BR-R8070
Road & gravel (dry)
L / K-Type
105 Di2
BR-R7170, BR-R7070
Road & gravel (dry)
L / K-Type
Tiagra
BR-4770
Road & gravel (dry)
L / K-Type
GRX
BR-RX820, BR-RX810, BR-RX400
Gravel & adventure (dry)
L / K-Type
Shimano RS Series
BR-RS405, BR-RS785
Road & gravel (dry)
🔥 Compound: Pro Semi-Metallic
Our Pro Semi-Metallic compound combines a high metal content with resin stabilisers to deliver powerful braking with refined control. It offers excellent heat resistance for long descents while remaining quieter and smoother than full metallic race compounds.
Features and Performance Benefits
Hybrid metal-resin formulation = Strong bite with controlled modulation
High thermal stability = Fade-free braking on long descents
Stable friction curve = Predictable lever feel in mixed conditions
Reduced vibration vs full metallic = Quieter braking and improved comfort
e-bike approved construction = Handles increased system weight and load
Note: While quieter than full metallic compounds, semi-metallic pads may still generate noise in wet or gritty conditions.
