If your brake caliper uses Hayes Sole, So1e, or Hayes MX / CX pads, these will fit.
Gorilla Brakes Semi-Metallic Disc Brake Pads are designed for riders who want
smooth, quiet braking with reduced rotor wear. Built for Hayes Sole / So1e and
Hayes MX & CX series brake systems, this compound delivers predictable modulation
and consistent performance for commuting, touring, hybrid riding, and light MTB use.
🔧 Compatibility
Direct replacement pads for the following Hayes brake systems:
Pad Type
Brake Series
Caliper Model
Riding Discipline
Hayes CX / MX / Sole format
Hayes
Sole / So1e
Commuting, Touring, Hybrid
Hayes CX / MX / Sole format
Hayes
MX-2 / MX-2XC
Commuting, Touring, Light MTB
Hayes CX / MX / Sole format
Hayes
MX-3 / MX-4 / MX-5
Commuting, Touring, Light MTB
Hayes CX / MX / Sole format
Hayes
MX Expert / CX Series
Commuting, CX, Mixed Terrain
Not compatible with Hayes Stroker, Radar, Dominion, or 4-piston MTB calipers.
🔥 Compound: Semi-Metallic
This semi-metallic compound is tuned for quiet operation and smooth braking feel.
It beds in quickly, produces less rotor wear than full metallic pads, and offers
reliable stopping power in dry and mixed conditions — ideal for everyday riding.
Feature
Benefit
Semi-metallic friction blend
Smooth, quiet braking with good control
Rotor-friendly behaviour
Reduced rotor wear for high-mileage riding
Quick bedding-in
Consistent performance after short setup
Stable modulation
Predictable braking in traffic and mixed terrain
REACH-compliant compound
Safe and compliant for UK & EU use
📦 What’s Included
1 × Pair of semi-metallic disc brake pads (fits one caliper)
1 × Pad spring
Minimal, recyclable packaging
🌍 Ideal For
Commuting and daily urban riding
Touring and hybrid bikes
Light MTB and cyclocross use
Riders prioritising quiet braking and rotor longevity
Installation tip: bed in new pads with 10–15 firm stops at low speed. Braking performance improves after initial heat cycles.
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