• Gorilla Brakes Semi-Metallic Pads for TRP HY/RD, Spyre, Hylex, and Slate X2
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TRP Spyre / HY-RD / Slate X2 – Enduro Pro Semi-Metallic Disc Brake Pads (2-Piston) | Gorilla Brakes

TRP Spyre / HY-RD / Slate X2 – Enduro Pro Semi-Metallic Disc Brake Pads (2-Piston) | Gorilla Brakes

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Choose this compound if…A versatile balance of quiet operation, power and durability for mixed conditions.

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Front + rear?For front and rear, choose 2 packs if both calipers use this pad shape. Check the pack contents below.
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Gorilla Brakes Enduro Pro Semi-Metallic steel-backed pads for the listed TRP hydraulic, cable-actuated hydraulic and mechanical disc brakes.

This SP10.11-family shape fits the listed Hylex post-mount calipers, not Hylex flat-mount calipers.

At a glance

Specifications

Compound
Enduro Pro Semi-Metallic
Backing plate
Steel
Pad shape
TRP SP10.11 / A10TS / P-A12RS family
Riding
Road, gravel, cyclocross, trail and compatible e-bikes
Pack contents
2 brake pads and 1 pad spring
Coverage
1 compatible brake caliper

Each pack contains one pair of brake pads (2 pads) and 1 pad spring for one compatible caliper. Order two packs for both brakes only after checking that both calipers use this pad shape.

Check before ordering

Compatibility

Match the exact model and existing pad shape. The listed HY/RD and Spyre flat-mount calipers use this SP10.11-family shape, while Hylex flat-mount uses a different F10-series shape. On G-Spec FMR HD-M803 these pads fit the front caliper only; on HD-R802 they fit the rear caliper only. The opposite calipers use F10-series pads.

Brake familyCompatible calipers
Slate X2HD-M801
HY/RDHD-C705 post mount; HD-C710 and HD-C711 flat mount
Spyre / Spyre SLCMD-C605 / MD-C605SLC post mount; MD-C610 / MD-C610SLC flat mount
SpykeMD-M600
Hylex post mountHylex post-mount; Hylex RS HD-C801
G-Spec FMRHD-M802; HD-M803 — front caliper only; HD-R802 — rear caliper only
Additional SP10.11-family caliperHD-EU815

E-bike and loaded riding

Enduro Pro Semi-Metallic is an e-bike-rated compound recommended for electric bikes, heavy cargo bikes and loaded touring. Use this pad shape only with the compatible calipers listed here, and match the complete brake setup to your bike and total load.

Rotor compatibility

This compound is suitable for all bicycle disc brake rotor types, including rotors marked “resin pads only”.

Rotor diameter and thickness must still meet your brake manufacturer’s specifications. Check the rotor’s condition and minimum permitted thickness before fitting new pads.

Compound performance

Enduro Pro Semi-Metallic

A versatile compound for trail, enduro and loaded riding. Our published testing highlights its dry braking performance and a cooler caliper than Sintered at comparable rotor temperatures.

These findings describe the tested samples and setups, not separate tests of every pad shape or caliper. Actual braking performance, temperature and wear depend on your braking system and riding conditions.

Compound ratings out of 10

These scores describe the friction compound.

Braking performance
9
Fade resistance
9
Heat resistance
9
Lifespan
8
Quietness
9

Ratings from the supplied Enduro Pro compound chart. Higher scores indicate stronger performance in that category; a higher quietness score means quieter braking.

Heat management

Caliper temperature vs rotor temperature

Swipe or scroll sideways to read the whole plot.

All curves shown

Caliper temperature vs rotor temperature Indicative comparison of caliper temperature against rotor temperature, both in °C, for Sintered, Enduro Pro Semi-Metallic, Enduro Pro Resin and Enduro Pro Ultimate. 0 50 100 150 200 250 300 350 400 450 Rotor temperature (°C) 25 35 45 55 65 75 85 95 105 115 125 Caliper temperature (°C) Sintered Enduro Pro Semi-Metallic Enduro Pro Resin Enduro Pro Ultimate SinteredEnduro Pro Semi-MetallicEnduro Pro ResinEnduro Pro Ultimate
About this test

The horizontal axis shows rotor temperature; the vertical axis shows caliper temperature. At the same rotor temperature, a lower curve means a cooler caliper in this test setup. Consider this alongside braking power, pad life and correct fitment when choosing pads for long descents or heavier loads.

Indicative test comparison. Results relate to the tested samples and setup.

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Compare braking power across compounds

All eight curves use the Shimano XT RT86 rotor. Choose a compound to highlight its tested result.

Why some curves stop earlier

Each test run stopped when the measured caliper temperature reached 120°C, the stopping threshold used to protect the piston seals in this test setup. The horizontal axis shows rotor temperature. Sintered’s shorter curve means the caliper reached the limit at a lower rotor temperature.

Swipe or scroll sideways to read the whole plot.

All curves shown

Gorilla compounds: braking power Bedded-in Gorilla pads tested with the Shimano XT RT86 rotor. Horizontal axis: rotor temperature (°C). Vertical axis: braking power (W), starting at 0. Approximate reconstruction from the supplied test graph. Samples: Enduro Pro Ultimate · Shimano XT RT86 rotor; Enduro Pro Ultimate · Aluminium backing · Shimano XT RT86 rotor; Enduro Pro Resin Black · Shimano XT RT86 rotor; Enduro Pro Semi Metallic Blue · Shimano XT RT86 rotor; Sintered · Shimano XT RT86 rotor; Factory Racing Stealth Purple · Shimano XT RT86 rotor; Factory Racing Green · Shimano XT RT86 rotor; Factory Racing Organic · Shimano XT RT86 rotor. Gorilla compounds: braking power 75 150 225 300 375 450 0 300 600 900 1,200 1,500 Rotor temperature (°C) Braking power (W) Each curve ends when the caliper reaches 120°C, the stopping limit used in this test. Approximate reconstruction from the supplied test image. Y-axis starts at 0.
About this test

This chart compares braking power for bedded-in pads, all tested with the Shimano XT RT86 rotor. The horizontal axis shows rotor temperature (°C); the vertical axis shows braking power (W). Each curve represents the compound and backing-plate configuration named in the selector. Compare curves within their plotted ranges; no result is shown beyond the end of a curve.

Follow Enduro Pro Semi Metallic Blue for this compound. These results relate to the tested configuration.

Test context: All pads shown can be good choices for their intended use when correctly matched to the bike and rotor, installed and bedded in. A lower or shorter curve does not by itself make a pad a poor everyday choice. Real riding temperatures depend on the route, total load, braking technique and setup; this test does not establish a temperature limit for the average rider. Rotor choice can substantially affect braking power, but these results apply to the tested combinations. This comparison does not guarantee the same improvement on another bike or identify one best pad for every rider.

Compare against other brands

Fitting and bedding in

Follow our installation guide, then complete the recommended bedding-in procedure to prepare the new friction material and establish an even transfer layer on the rotor.

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Help & fitting

Get your brakes ready

Check your fitment, prepare your brakes and find support.

Your questions

About these brake pads

Fitment, materials and performance explained.

What do the performance ratings describe?

The ratings describe the Enduro Pro Semi-Metallic friction compound. Individual pad shapes, backing plates and calipers have not been separately scored. Higher scores indicate stronger performance in that category; a higher quietness score means quieter braking.

How do I check that these pads fit my brakes?

Match the exact caliper model and existing pad shape to the compatibility table on this page. Do not rely on the brake lever name or series alone. Check the front and rear calipers separately, because some systems use different pad shapes at each end.

Which rotors can I use with this compound?

This compound is suitable for all bicycle disc brake rotor types, including rotors marked “resin pads only”. Rotor diameter and thickness must meet your brake manufacturer’s specifications. Check the rotor’s condition and minimum permitted thickness before fitting new pads.

Do new brake pads need bedding in?

Yes. Follow the installation guide and complete the recommended bedding-in procedure before demanding riding. Bedding in prepares the new friction material and establishes an even transfer layer on the rotor.

Can I use these pads on an e-bike?

Yes. Enduro Pro Semi-Metallic is an e-bike-rated compound recommended for electric bikes, heavy cargo bikes and loaded touring. Use this pad shape only with the compatible calipers listed on this page, and match the complete brake setup to your bike and total load.

What is included in one pack?

Each pack contains 2 brake pads and 1 pad spring for one compatible caliper. Check the front and rear calipers separately before ordering two packs.

Product video

Enduro Pro brake pad compounds

An overview of Enduro Pro Ultimate, Semi-Metallic and Resin. This listing supplies Enduro Pro Semi-Metallic pads. See the product information for fitment and pack contents.

Watch on YouTube
  • 5 stars: 9 (90%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (10%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
S
Simon Larbey

Replacement for sintered pads, trying out a nw compound.

Hi Simon, thanks for the 5-star review! We hope the new ceramic compound works brilliantly as a replacement for your sintered pads. if you run in to any issues please feel free to get in touch direct have a great weekend

J
John Duquemin

easy fit and nice finish to the pads will need to do a few hundred miles to know how they perform

Hi John, thank you for your positive feedback! We're glad you found the pads easy to fit and well-finished. Hopefully, they'll perform even better after some miles. Feel free to reach out if you have any questions. Happy riding!

K
Kevin Edwards

They have not been truly put to the test just yet, but already seem to have vastly improved braking compared to the previous pads. Fitted easily and without any problems, after arriving promptly.

Hi Kevin, we're glad to hear you're already noticing a difference with the new pads! Thanks for choosing Gorilla Brakes and for sharing your experience. Enjoy your rides!

J
JBO

Good brakes. Easy to setup. Good packaging and informative instructions on website.

Hi James, thank you for your kind words! We're glad you found the brakes easy to set up and appreciated the packaging and instructions. Enjoy your rides!

A
Anonymous

Had several sets of gorillapads, so much better thanthe stock TRP pad. I have them on my loaded bike packing rig and they work a treat

Hi there,

Thank you for your feedback on our Enduro Pro Ultimate Disc Brake Pads! We are so happy to hear that they have been a great improvement over the stock TRP pads. We strive to provide high-quality products that enhance your riding experience. Happy trails!

Best,
Gorilla Brakes Team

A
Anonymous

I haven't had a chance to fit the brakes yet, but Gorilla Brakes emails me fairly persistently asking for a review, so I can say they were delivered promptly.

Hi there,

Thank you for taking the time to leave a review! We appreciate your feedback and we hope you will be pleased with the brakes once you have them installed. Our team works hard to ensure prompt delivery and we're glad to hear it was a positive experience for you.

Thanks again!

Best,
Gorilla Brakes

P
Patrick Wareham

I placed my order late one evening and I have to admit I was not entirely on the ball. I was surprised and very impressed to receive a call the next morning from Gorilla as they suspected I had ordered the wrong disc rotor for my calliper. The order was amended and parts arrived promptly.
I fitted the parts on my old winter bike, a Specialized Diverge I bought second hand with mechanical disc brakes which have never been good. It was getting to the stage that I was going to permanently demote it to the turbo trainer.
I have been out for a few rides and the brakes have bedded in a treat. I am so happy as it’s made an ok bike good again and I now feel safe riding it. Thanks Gorilla brakes, I will certainly be back for more parts.

Hi there!

Thank you for taking the time to leave a review. We are so glad to hear that our team at Gorilla Brakes was able to help you with your order and ensure that you received the correct parts for your bike. We are even happier to hear that our products have made a positive difference in the performance of your bike and have helped you feel safer while riding.

We truly appreciate your support and hope to see you back for more parts in the future. Happy riding!

Best regards,
Gorilla Brakes team

A
Anonymous

Great break pads

Thankyou

A
Anonymous

These have been a excellent upgrade over the stock pads that arrived on the bike.

Hi there! Thank you so much for taking the time to leave a review. We're thrilled to hear that our Sintered Disc Brake Pads have been an excellent upgrade for your bike. We strive to provide high-quality products that enhance your riding experience. Happy riding!

m
m.M.

Great sales and communication will definitely purchase again 5⭐️⭐️⭐️⭐️⭐️