[Published: July 10, 2026 | Last updated: July 10, 2026]
TL;DR
- Shimano 105 brake pads are not universal, because the right pad depends on whether your 105 brake is a rim brake or a disc brake and on the exact brake generation.
- The safest fit check is the caliper model number plus the pad shape code, not the bike name or the group name alone.
- Resin pads are usually quieter and easier to modulate in dry riding, while metallic pads usually last longer and handle heat and wet conditions better, according to Shimano parts guidance and common shop practice.
- Wet weather changes pad feel and wear, so commuters and riders on long descents often get more from metallic pads than from a quieter compound.
- If you are unsure, remove one old pad and match the backing plate shape before buying replacements, because the shape is what decides fit.
What Are shimano-105-brake-pads, and Why Does Fit Matter?
Shimano 105 brake pads are the friction parts that slow the bike by pressing against a rim or a rotor. Fit matters because Shimano 105 includes both rim brake and disc brake versions, and the wrong pad can cause weak braking, noise, or a part that simply will not install.
A pad that looks close can still be wrong. Shimano uses different pad shapes, backing plates, and compounds across 105 generations, so the brake model is the first thing to check.
[IMAGE: A side-by-side visual showing Shimano 105 rim brake pads next to Shimano 105 disc brake pads, with labels for pad shape and backing plate]
Compatibility by Brake Model
The correct Shimano 105 brake pads depend on the brake model number, not just the 105 label. Shimano 105 rim brakes use cartridge-style pads for rim calipers, while Shimano 105 disc brakes use pad shapes matched to the hydraulic or mechanical caliper model.
Shimano 105 Rim Brake Models
Shimano 105 rim brake calipers use pads designed to grip the wheel rim. Older 105 calipers often accept removable cartridge inserts, and those inserts must match the holder style and rim material.
For rim brakes, the main checks are caliper model, cartridge holder type, and whether your rim is aluminum or carbon. Carbon rims often need a separate pad compound made for carbon, while aluminum rims use standard rim-brake compounds.
Shimano 105 Disc Brake Models
Shimano 105 disc brake calipers use specific pad shapes that match the caliper body. Common 105 disc systems have Shimano pad shape codes tied to the caliper generation, and the shape matters more than the pad brand name.
Shimano publishes compatibility by caliper model in its dealer manuals and spare-parts lists. If you have a modern 105 hydraulic caliper, read the model number on the caliper and order the matching pad shape listed for that model (Shimano, 2026).
Quick Compatibility Check
Use this order of checks before buying replacement shimano-105-brake-pads:
- Read the brake model number on the caliper or brake lever assembly.
- Decide whether the brake is rim or disc.
- Match the pad shape code to the Shimano parts list for that model.
- Confirm whether your setup needs resin, metallic, or a carbon-specific rim compound.
- Verify rotor clearance or rim width before installation.
[IMAGE: A close-up of a Shimano 105 caliper with the model number circled, plus a simple arrow pointing to the pad removal pin]
Rim Brake vs Disc Brake Pads
Rim brake pads and disc brake pads are different products because they work on different surfaces. Rim brake pads grip the wheel rim, while disc brake pads clamp a steel rotor mounted at the hub.
That difference changes material choice, wear rate, and noise. Rim pads must suit the rim surface, while disc pads must suit rotor heat and the caliper's pad shape.
Rim Brake Pads
Shimano 105 rim brake pads are usually sold as cartridge inserts or complete holders, depending on the caliper. The pad compound must match the rim material, because a carbon rim and an aluminum rim need different friction behavior.
Aluminum rim pads usually give predictable braking and simpler setup. Carbon-specific pads are a separate category because carbon rims heat up differently and need compounds that reduce damage and help maintain braking consistency.
Disc Brake Pads
Shimano 105 disc brake pads come in resin or metallic compounds, and they must match the caliper's pad shape. Shimano's own parts listings separate pad shapes by caliper family, which is why a pad from another 105 generation may not fit even if the bike is still 105 (Shimano, 2026).
Disc pads also interact with rotor size and rider weight. Bigger riders, loaded bikes, and long descents create more heat, which makes pad material a performance choice, not just a fit choice.
Organic vs Metallic Options
Organic and metallic are the two most common pad compound choices for Shimano 105 disc brakes. Organic pads are usually quieter and easier to modulate, while metallic pads usually last longer and handle heat and wet conditions better.
These are not fixed rules for every rider, but they are the tradeoff most mechanics use. If you want a softer initial bite and less noise, organic is usually the first pick. If you ride in wet weather or on long descents, metallic often makes more sense.
Organic Pads
Organic pads, also called resin pads, use non-metallic friction material. They usually feel smoother at the lever and make less noise under normal dry conditions.
Organic pads also bed in quickly, which makes them friendly for riders who want an easy swap and immediate feel. The tradeoff is faster wear, especially in rain, grit, or on hilly routes with repeated braking.
Metallic Pads
Metallic pads use more metal content in the friction material. They tend to last longer and keep working better when the rotor gets hot or wet.
The downside is more noise in some conditions and a slightly firmer feel at the lever. If your riding includes steep descents, commuting in rain, or high mileage, metallic pads are often the practical choice.
| Pad type | Main advantage | Main drawback | Best use case |
|---|---|---|---|
| Organic | Quiet and smooth braking | Wears faster in wet and gritty conditions | Dry riding and lighter use |
| Metallic | Longer life and better heat tolerance | Can be noisier | Wet weather, descents, and heavy use |
Wet-Weather and Noise Considerations
Wet weather changes brake pad behavior because water reduces immediate friction and can raise noise. If you ride Shimano 105 in rain, pad material and rotor condition matter more than they do on dry roads.
Noise usually comes from contamination, glazing, poor bedding-in, or a material choice that suits one condition better than another. A quiet pad in a clean dry setup can squeal after contamination from chain lube, road spray, or glaze.
What Wet Riding Does to Pads
Wet riding can shorten pad life and reduce the first-second braking response. Metallic pads generally cope better with rain and repeated braking, while organic pads can feel stronger at first in dry weather but wear faster when conditions get messy.
That is why commuters and endurance riders often prefer metallic pads, even if they give up a little silence. The tradeoff is simple: more durability and wet consistency versus a calmer dry feel.
How to Reduce Noise
Noise reduction starts with clean parts and correct installation. A contaminated rotor or pad often squeals no matter which compound you choose.
Use this short checklist:
- Clean the rotor with isopropyl alcohol.
- Inspect the pads for glaze, oil, or uneven wear.
- Bed in new pads with controlled hard stops.
- Check caliper alignment so the pads contact evenly.
- Replace pads that are soaked in lubricant or brake fluid.
[IMAGE: A mechanic cleaning a disc rotor with alcohol wipe, with a caption showing correct rotor cleaning before new pad installation]
How to Identify the Correct Pad Shape
The correct pad shape is identified by the caliper model number and the old pad's backing plate shape. This is the fastest way to avoid ordering the wrong shimano-105-brake-pads.
Shimano disc brake pad shapes are tied to caliper families, and rim brake pads are tied to the holder style and rim material. If you skip the shape check, even a pad labeled for Shimano may not fit your 105 brake.
Step 1: Find the Caliper Model
Look for the model code on the brake caliper or in the bike spec sheet. Modern Shimano calipers usually have the code etched on the body or listed in the original build sheet.
Once you have the model code, check Shimano's parts documentation for the exact pad shape. This is the most reliable method because the same 105 label can cover more than one brake generation (Shimano, 2026).
Step 2: Remove the Old Pad and Compare the Backing Plate
Remove one pad and compare the shape, pin location, and tab layout. The backing plate shape is the real identifier, not the brand name printed on the package.
If the old pad has a code stamped on it, use that code as your ordering reference. If the pad is worn too far for a clear code, match the shape against a seller's chart or Shimano's exploded diagram.
Step 3: Match Material to Your Riding
After shape comes compound choice. Choose organic for quieter dry riding, metallic for wet weather and durability, and rim-specific compounds for your rim-brake setup.
That order matters because shape is a fit issue and compound is a performance choice. A perfect compound in the wrong shape is still the wrong pad.
Common Mistakes to Avoid with shimano-105-brake-pads
The most common mistake is buying by bike name instead of brake model. Shimano 105 covers multiple generations, so "105 pads" is too vague without a caliper check.
Buying Pads by Group Name Only
This is wrong because 105 includes different rim and disc systems. Use the caliper code and pad shape code instead of relying on the group label alone.
Mixing Rim and Disc Brake Terms
This is wrong because rim pads and disc pads are built for different contact surfaces. Buy rim pads only for rim calipers and disc pads only for disc calipers.
Ignoring Rotor or Rim Material
This is wrong because pad material must suit the braking surface. Carbon rims need carbon-compatible rim pads, and contaminated rotors can ruin disc pad performance.
Reusing Glazed or Oil-Soaked Pads
This is wrong because contamination changes friction and noise. Replace soaked pads instead of trying to clean them if brake fluid or chain oil has soaked into the compound.
Installing Pads Without Bedding Them In
This is wrong because new pads need a transfer layer to work properly. Do several controlled stops to seat the pad material against the rim or rotor.
Frequently Asked Questions About shimano-105-brake-pads
What brake pads fit Shimano 105 disc brakes?
The fit depends on the exact caliper model, not just the 105 name. Check the model code on the caliper and match the Shimano pad shape listed for that model in Shimano's parts documentation (Shimano, 2026).
Are Shimano 105 brake pads the same for rim and disc brakes?
No, they are different. Rim brake pads contact the wheel rim, while disc brake pads contact a rotor, so the shapes and compounds are different.
Are organic pads better than metallic pads for Shimano 105?
Organic pads are better if you want quieter braking and a smoother feel in dry conditions. Metallic pads are better if you ride in rain, descend often, or want longer pad life.
How do I know if my Shimano 105 brake pads are worn out?
Check the remaining friction material and look for thin pads, uneven wear, glazing, or noise that does not go away after cleaning. If the wear indicator is gone or braking feels weak, replace the pads.
Can I use non-Shimano pads on Shimano 105?
Yes, if the pad shape matches the caliper and the material is suitable for your riding. Many third-party pads fit Shimano calipers, but the shape code must still be correct.
Why are my Shimano 105 brakes squealing after a pad change?
Squealing usually comes from contamination, poor alignment, or unbedded pads. Clean the rotor, check caliper alignment, and bed in the pads with a controlled stop pattern.
Which pad type is best for wet riding?
Metallic pads are usually the safer pick for wet riding because they keep working better when the rotor is wet and they wear more slowly. If you ride mostly in dry weather, organic pads can still be a good choice.
Key Takeaways
- Shimano 105 brake pads are chosen by brake model and pad shape, not by the 105 label alone.
- Rim brake and disc brake pads are different products, and carbon rims need rim-specific compounds.
- Organic pads are quieter, while metallic pads last longer and handle wet conditions better.
- Wet weather, heat, and contamination affect braking feel more than many riders expect.
- The fastest way to buy the right pad is to read the caliper model, remove the old pad, and match the backing plate shape before ordering.