🔔 Compatibility Alert: This product is specifically crafted for the SRAM RX4 30 mm short version. Please verify your brake model before placing an order. Not suitable for RX4+ (Shimano version).
Designed for HOPE RX4 SRAM-fit calipers — perfect for riders seeking quiet braking, reliable power, and long-term durability on gravel, cyclocross, and endurance road setups.
Gorilla Brakes Semi-Metallic Pads blend metallic durability with the smooth control of organic compounds. The result is balanced braking force, low noise, and dependable modulation in all-weather riding. Fully REACH-compliant. Not recommended for full-power e-bikes.
✅ Compatibility Chart
Caliper Model
Version
Riding Style
HOPE RX4
SRAM 30 mm Short Body
Gravel, CX, Road
🔥 Compound Type: Semi-Metallic (Standard Range)
The Semi-Metallic Compound delivers confident braking with smooth, quiet control. It’s ideal for riders wanting consistent performance across dry or damp terrain without harsh rotor wear.
Feature
Performance Benefit
Hybrid metallic-organic blend
Quiet braking with strong initial bite
Moderate heat resistance
Fade-free control on long descents
Low rotor wear
Preserves rotor surface and reduces vibration
All-weather friction stability
Reliable braking in dry or wet conditions
OEM precision fit
Exact dimensions for HOPE RX4 SRAM 30 mm calipers
📦 What’s Included
1 × Pair of brake pads (for one caliper)
1 × Spring clip
Eco-friendly recyclable packaging
🌍 Ideal For
Gravel and CX riders needing quiet, predictable braking
Gorilla Brakes is trusted by riders worldwide, with over 13,000 verified positive feedback ratings.
We also work closely with race teams and sponsored riders to validate performance in real-world conditions.
Didn't make a huge difference compared to Shimano H03A. Better bite but no change on the braking power (not yet tested on harsh conditions/long downhill
