• Gorilla Brakes Factory Organic Disc Brake Pads compatible with Tektro Gemini, Auriga, and Orion 4x2P – Q10RS resin compound
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Tektro Gemini / Auriga / Dorado – Factory Racing Organic Disc Brake Pads (2-Piston) | Gorilla Brakes

Tektro Gemini / Auriga / Dorado – Factory Racing Organic Disc Brake Pads (2-Piston) | Gorilla Brakes

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Selected compound: Factory Racing OrganicQuiet, responsive braking for dry XC, road and gravel. This ultra-soft organic compound prioritises braking feel. This compound can wear very quickly in wet and muddy 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 Factory Racing Organic brake pads for the compatible calipers listed below.

Match your existing pad shape and exact caliper model before ordering. The shared ratings describe the Factory Racing Organic friction compound.

At a glance

Specifications

Compound
Factory Racing Organic
Backing plate
Steel
Pad shape
Tektro A10YS / A11TS / E10.11 / P20.11 and listed P21.11 / E11.11 applications — 4 mm supplied
Riding
Dry XC, road and gravel; compatible e-bike use
Pack contents
2 brake pads and 1 pad spring
Coverage
1 compatible brake caliper

Each pack contains 2 steel-backed brake pads, supplied at 4 mm thickness, and 1 pad spring for one compatible caliper. On Orion HD-M735 and Gemini HD-M530, this pack fits the rear two-piston caliper only; the front needs the different four-piston pad shape.

Check before ordering

Compatibility

Match the exact caliper model and pad shape to the list below. On Orion HD-M735 and Gemini HD-M530, these pads fit the rear two-piston caliper only. HD-E720 and HD-E725 use a different four-piston pad shape and are not compatible with this listing. These pads are supplied at 4 mm thickness. Gorilla Brakes confirms use in the listed P21.11 / E11.11 applications originally specified with 5 mm pads.

Brake familyCompatible calipers
GeminiHD-M500, HD-M501, HD-M520, HD-M521
Gemini — P21.11 / E11.11 (original 5 mm application)HD-M530 — rear two-piston caliper only
Auriga / MT seriesHD-M3520, HD-M290, HD-M285, HD-M286, HD-M280, HD-M281, HD-M275, HD-M276, HD-M282
Junior MTBHD-J285, HD-J290, HD-J2820
Orion 4×2HD-M735 — rear two-piston caliper only
T-seriesHD-T530, HD-T520, HD-T3520, HD-T3021, HD-T3020, HD-T385, HD-T386, HD-T290, HD-T285, HD-T286, HD-T280, HD-T281, HD-T275, HD-T276, HD-T525
R-seriesHD-R3021, HD-R3020, HD-R285, HD-R286, HD-R280, HD-R281
E-seriesHD-E525, HD-E520, HD-E500, HD-E530, HD-E3520, HD-E351, HD-E350
DoradoHD-E715 — two-piston
P21.11 / E11.11 (original 5 mm application)HD-M390, HD-T390, HD-E395, HD-E540, HD-E541, HD-E545, HD-E546, HD-E547, HD-T540, HD-T541, HD-T545
Mechanical disc brakesMD-M500, MD-M300, MD-M280, MD-C550, MD-U510, MD-C510, MD-C400, MD-U310, MD-C310

E-bike use

Factory Racing Organic is an e-bike-rated compound. 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 meet your brake manufacturer’s specifications. Check rotor condition and minimum permitted thickness before fitting new pads.

Compound performance

Factory Racing Organic

Quiet, responsive braking for dry XC, road and gravel. This ultra-soft organic compound prioritises braking feel. This compound can wear very quickly in wet and muddy conditions.

Scores are approximate readings from the Factory Racing Organic chart. They describe the tested compound; actual braking and wear depend on your brake setup and riding conditions.

Compound ratings out of 10

These scores describe the friction compound.

Dry braking
≈8
Wet braking
≈7
Lifespan
≈6
Quietness
≈9
Heat dissipation
≈9

Approximate ratings out of 10 from the supplied Factory Racing compound chart. Higher ratings indicate stronger performance in that category; a higher quietness rating means quieter braking.

Compound testing

Factory Racing Organic: braking power

These pads use a steel backing plate. The ratings shown on this page describe the Factory Racing Organic friction compound.

The graph compares pad compounds and backing-plate configurations, all tested with the Shimano XT RT86 rotor.

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 the Factory Racing Organic curve. Its highest plotted output in the Shimano XT RT86 rotor comparison was approximately 1,200 W. Values are approximate reconstructions from the supplied graph. This result describes the tested pad and rotor setup, not a maximum power rating or a fitment test.

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.

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Fitting and bedding in

Follow the installation guide for your braking system, then complete the recommended bedding-in procedure before normal riding.

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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?

Scores are approximate readings from the Factory Racing Organic chart. They describe the tested compound; actual braking and wear depend on your brake setup and riding conditions. These scores describe the friction compound. Individual pad shapes, backing plates and calipers have not been separately scored here. Approximate ratings out of 10 from the supplied Factory Racing compound chart. Higher ratings indicate stronger performance in that category; a higher quietness rating 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. Factory Racing Organic is an e-bike-rated compound. Use this pad shape only with the compatible calipers listed here, 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

Factory Racing Organic brake pad overview

An overview of Gorilla Brakes Factory Racing Organic brake pads. See this listing for the compatible calipers, backing plate and pack contents.

Watch on YouTube
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Some of the reviews shown are from related products the merchant grouped with this one.
A
Agnieszka

Great stopping power at a reasonable price.

Thanks for the Great reveiw

P
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!

P
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