Gorilla Brakes · Replacement disc brake pads

HOPE Compatible Semi-Metallic Disc Brake Pads

Explore Gorilla Brakes Semi-Metallic pads for Hope. Select the exact caliper family first: E4 / RX4+ / RX4-SH (HBSP323) and original RX4-SR (SRAM, HBSP359) use different shapes. V4/GR4/TR4, X2/RX2 and M4 are separate families. Hope lists a 31 mm reference width for HBSP359; RX4-SR pads do not fit the HBSP323 calipers.

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Check fitment and compatible models

Check the exact caliper version and original pad outline before choosing a compound. These pad families are not interchangeable.

Pad familyCompatibility and selection
E4 / RX4+ / RX4-SH — HBSP323Tech 3 E4, Tech 4 E4, RX4+ and original RX4-SH use the HBSP323 family. These are separate from original RX4-SR. Check the exact product compatibility. View matching pad family →
RX4-SR (SRAM) — HBSP359Original RX4-SR calipers for SRAM systems use HBSP359. Hope lists a 31 mm reference width. RX4-SR pads do not fit E4, RX4+ or RX4-SH using HBSP323. Semi-Metallic RX4-SR product →
V4 / GR4 / TR4Keep V4, GR4 and TR4 in their separate pad family; check the exact version on the selected product. View matching pad family →
X2 / RX2 / XCRX2, RX2 and XCR form a separate two-piston pad group. Check the models listed on the selected product. View matching pad family →
M4Legacy M4 is a separate family; match the exact version and original pad outline. View matching pad family →

Check front and rear calipers separately, including pack contents and the number of packs required.

Choose your performance range

Find your brake pads

Enduro Pro

Our highest-performance range.

Factory Racing

Performance-focused options.

Standard Compounds

Everyday riding options.

Choosing Semi-Metallic

Semi-Metallic is a versatile everyday option for commuting, road, gravel and lighter trails on conventional bicycles.

The Performance range is for conventional bicycles. For electric bikes, compare the e-bike-rated Enduro Pro and Factory Racing options; for heavy cargo or demanding descents, start with Ultimate Orange or Semi Metallic Blue.

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Advice when you need it

Choose. Fit. Bed in.

Fitting guide Bedding-in guide Find your brake pads Ask us about your brakes

Before you order

HOPE Compatible Semi-Metallic Disc Brake Pads FAQs

A little help with fitment, compounds and getting ready to ride.

How do I select the correct pad for Hope?

The original RX4-SR (SRAM) Semi-Metallic product uses HBSP359. Hope lists a 31 mm reference width for this shape. It does not fit E4, RX4+ or RX4-SH calipers using HBSP323. Choose the separate E4 / RX4+ product for that family, and keep V4/GR4/TR4, X2/RX2 and M4 shapes separate. Check the exact caliper and original pad outline before ordering.

When should I consider Semi-Metallic?

Semi-Metallic is a versatile everyday option for commuting, road, gravel and lighter trails on conventional bicycles.

Is Semi-Metallic the same option as Enduro Pro Semi Metallic Blue?

No. The everyday Semi-Metallic option belongs to the Performance range for conventional bicycles. Enduro Pro Semi Metallic Blue is a separate e-bike-rated Enduro Pro choice, recommended for heavier loads and long descents. Check the full product name and exact caliper fitment.

How should I prepare the rotor and bed in new pads?

Check the rotor’s condition, wear limit and permitted pad material. Follow the installation instructions for your caliper and our bedding-in guide, including rotor preparation when changing compounds.