Shimano Brake Pads H03A 4-Piston Resin
Quiet braking, smooth control and integrated cooling for demanding mountain biking.
What Is It?
The Shimano H03A-RF is a resin disc brake pad designed for compatible Shimano 4-piston hydraulic brake calipers. It features cooling radiator fins to help dissipate heat during braking, while its resin compound provides quieter operation and smooth braking modulation. It is well suited to demanding trail, enduro and downhill riding.
Key Features
-
Resin brake compound: Provides quieter braking and smooth control.
-
Radiator cooling fins: Help dissipate heat and reduce brake fade.
-
4-piston compatibility: Designed for selected Shimano 4-piston hydraulic disc brakes.
-
Improved wear resistance: Shimano rates H03A resin pads as having 40% greater wear resistance than the earlier H01A pad.
-
Consistent braking feel: Supports controlled braking on technical descents and varied terrain.
Specifications
|
Specification
|
Details
|
|
Brand
|
Shimano
|
|
Model
|
H03A-RF
|
|
Product type
|
Hydraulic disc brake pads
|
|
Pad material
|
Resin
|
|
Caliper type
|
4-piston
|
|
Cooling system
|
Integrated radiator fins
|
|
Backplate
|
Stainless steel
|
|
Pad shape
|
H-type, narrow
|
|
Compatible calipers
|
BR-M8020, BR-M820, BR-M640
|
|
Package
|
Typically one pair
|
Benefits
-
Reduces braking noise compared with many metallic pad compounds.
-
Provides smooth modulation for better control on technical trails.
-
Helps manage heat during prolonged descents.
-
Offers durable performance for regular trail and enduro use.
Best Suited For
Mountain bikers, enduro riders and downhill cyclists using compatible Shimano 4-piston brakes who want quiet operation, controlled braking and additional heat management.
