Take a closer look at Gorilla Brakes Factory Racing Stealth pads — designed for quiet braking, smooth modulation and dependable braking performance.
Compatible with selected Tektro heavy-duty 2-piston e-bike, cargo-bike, touring and commuter brake calipers requiring the extra-thick 5mm E11.11 or P21.11 pad format.
Gorilla Brakes Factory Racing Stealth 5mm Pads combine our high-performance Factory Racing friction compound with an acoustic damping layer designed to reduce vibration and unwanted braking noise. Developed for the increased weight and braking demands of e-bikes, cargo bikes and utility cycles, they deliver powerful braking, progressive control and consistent performance under load.
These pads use the 5mm E11.11/P21.11-compatible pad profile. They are thicker than standard Tektro 2-piston pads, so the exact brake model and caliper position must be checked before ordering.
✅ Compatibility Chart
Brake System
Compatible Model
Important Information
Auriga
HD-E540, HD-T540
2-piston cargo and e-bike system
Auriga
HD-E541
Parking-lock e-bike variant
Auriga
HD-E546, HD-E547
Heavy-duty e-bike variants
Auriga Twin
HD-E545, HD-T545
Twin-caliper trike and cargo system
Auriga SUB / E-Comp
HD-T390, HD-M390, HD-E395
Compatible 5mm 2-piston systems
Gemini
HD-M3520, HD-T3520
2-piston e-bike systems
Gemini
HD-M530
Rear caliper only
Tektro Orion / HD Series
HD-M6020, HD-T6020
2-piston 5mm pad system
Tektro HD Series
HD-M5120
2-piston 5mm pad system
⚠️ Please note: On a Tektro HD-M530 brake system, these 5mm 2-piston pads fit the rear caliper only. The HD-M530 front caliper is a 4-piston design that requires the separate 5mm Q13RS-format brake pad.
Auriga Twin owners: This product contains enough pads for one caliper. A twin-caliper system normally requires two pairs for a complete pad replacement.
🔥 Compound Type: Factory Racing Stealth
The Factory Racing Stealth Compound is designed to provide strong, predictable braking while minimising noise and vibration. Its multi-layer construction combines a high-performance friction material with acoustic damping, making it particularly well suited to heavier e-bikes, cargo bikes, trikes and frequently used utility cycles.
Feature
Performance Benefit
Stealth acoustic damping layer
Helps reduce braking noise and vibration
Factory Racing friction compound
Powerful braking with progressive modulation
Heat-resistant construction
Consistent performance during repeated braking
5mm heavy-duty pad format
Designed for compatible cargo and e-bike calipers
Precision fit
Compatible with the listed E11.11 and P21.11 applications
📏 Pad Specification
Pad format
E11.11/P21.11-compatible
Overall thickness
5mm
Caliper type
Compatible Tektro 2-piston calipers
Compound
Factory Racing Stealth
Application
E-bike, cargo bike, trike, touring and utility use
📦 What’s Included
1 × Pair of 5mm brake pads
1 × Spring clip
Enough pads for one 2-piston caliper
Eco-friendly recyclable packaging
🌍 Ideal For
Electric commuter and touring bikes
Cargo bikes carrying additional weight
Electric trikes using Tektro Auriga Twin brakes
Utility and delivery bikes exposed to frequent braking
Riders seeking powerful braking with reduced noise and vibration
🔍 Check Before Ordering
Confirm that your brake model appears in the compatibility chart above
Check that your original pads use the 5mm E11.11 or P21.11 profile
For the HD-M530, order these pads for the rear caliper only
Do not use these pads in standard-thickness Tektro or TRP 2-piston calipers
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.
A: Yes — they’re designed for high-power e-bikes, delivering silent, fade-free braking.
A: They provide the same braking strength with quieter operation and smoother feel.
A: Yes — the Stealth compound is specifically tuned to minimise vibration and eliminate noise.
A: No — the friction layer is rotor-friendly and designed to reduce scoring.
A: Yes — all Gorilla Brakes pads are REACH-compliant and included in the Brake Pad Recycling Program.
5 stars: 6 (86%)
4 stars: 1 (14%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
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Agnieszka
Great stopping power at a reasonable price.
Thanks for the Great reveiw
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Peter Reynolds
A simple brake pad change made my Tektro brakes pleasing to use.
Hi Peter, we're thrilled to hear that our brake pads made your riding experience better! Thanks for choosing Gorilla Brakes.
P
Paul Saunders
Best pads I’ve ever used
Hi Paul, we're thrilled to hear these are the best pads you've ever used! Thanks for sharing your experience.
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Andrew Batchelor
Better than the factory fitted brake pads, more bite less noise
Thank you for your feedback! We're thrilled to hear that our Enduro Pro Semi-Metallic brake pads are an improvement over the factory ones. We strive to offer quality products that provide better performance and less noise. Ride on!
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Paul Nixon
My customers love these, progressive, secure and no squeal pads. You can confidently fit on pre-used discs without interface contamination issues and they are great for commuting in all weathers.
Thank you for leaving such a positive review for our Tektro Disc Brake Pads! We are so glad to hear that your customers love them and that they provide a secure and smooth braking experience. We take pride in creating pads that can be confidently used on pre-used discs without any contamination issues. It's great to know that they are also reliable for commuting in all weather conditions. Thank you for your support and we hope you continue to enjoy our products. Ride on!
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Anonymous
Marvellous. Really good, easy to fit. Thanks
Thank you for taking the time to leave us a review. We're happy to hear that you had a marvellous experience with our Tektro disc brake pads. Glad to know they were easy to fit for you. Thanks for choosing Gorilla Brakes!
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Anonymous
Great product.
Thank you for your positive feedback
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This was a repeat purchase given how well I got on with the last lot. My only quibble is that the packs aren't marked up with which pads are inside. As I run both semi metallic as well as sintered this means I have to write which is which on the packs....a simple label would help with both identification as well as making reordering quicker too. Thanks.
Great pads, in my opinion they are far superior to the stock pads that come with the Trp evo brakes. Fantastic stopping power and well worth the money
Hi Kenny, thank you for your fantastic review! We're thrilled to hear you're pleased with the pads and their stopping power. Enjoy your rides! dont forget to send back your old brake pads for recycling
I love these pads and have the orange versions of these on my Hope, TRP and Maven brakes. They wear well and have fantastic stopping power with very little noise. Good in sun or slop. They need careful bedding in and I feel they don't really kick in from new until after a couple of runs and seem to prefer it when they have a bit of heat running through them. Overall a quality pad and on par with other top end pads.
