Shimano 4 Piston Finned Pads H03C & H03A


Shimano 4 Piston Finned Pads, H03C & H03A

Finned replacement pads for Shimano XT BR-M8020, Saint BR-M820 and Zee BR-M640 brakes.

H03C – Metal:

Rigid compound designed for longer service life, high power in severe conditions, muddy and sandy conditions.
pn: Y8VT98020

H03A – Resin:

Flexible compound designed for less noise, focus on controllable performance, designed for wet and dry conditions.
pn: Y1XM98020


To better serve a greater number of riders we have implemented a maximum quantity per order on many service items.

Brake Pad Limit: 2 sets (enough for 1 bike)

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Shimano 4 piston finned pads utilize the additional material to radiate heat away from the pad designed to improve pad life and reduce brake fade.

shimano H03C metal pads Y8VT98020

Shimano H03C Metal Pad with Fins

UPC: 689228867604

Metal pads are rated for high stopping power.

shimano H03A resin pads Y1XM98020

Shimano H03A Resin Pad with Fins

UPC: 192790451619

Less noise than Metal pads

Shimano M8020 M820 M640 H03A H03C finned pads

Shimano H03A and H03C Compatibility

Pad Shape #51

Compatible with Shimano 4 piston brakes including:

XT BR-M8020
Saint BR-M820
Zee BR-M640

Shimano D0 vs H0 vs N0

Other Shimano 4 Piston Brake Pads

Shimano XT M8020, Saint M820 and Zee M640 use H03A or H03C finned pads on this page or the D02S and D03S non-finned options.

shimano D02S Metal brake pads pn: Y8FF98010

Shimano 4 piston pads without fins will work with brakes spec’d with H03A or H03C pads.

Shimano 4 piston brake pad compatibility

Shop other Shimano 4 piston brake pads


Shimano M9120 M8120 M7120 N03C N04C 4 piston finned pads
XTR M9120, XT M8120, SLX M7120


Shimano M8020 M820 M640 H03A H03C finned pads

XT M8020, Saint M820, Zee M640 (this page)

Do You Need To Replace Your Rotors As Well?

The nature of brake pad and rotor interface means they will wear together. Ideally you will be able to replace your brake pads a few times before you need to replace your rotors. however there can be some conditions that make it necessary to replace the rotors sooner. Let’s look at a few.

Rotor Wear:

Magura Shimano SRAM Rotor Wear Limits

The easiest thing to check is the rotor wear limit.

A Magura rotor that is less than 1.8mm wide is considered worn. SRAM rotors less than 1.5mm are worn. Shimano rotors less than 1.5mm or if any of the aluminum “Ice-Tech” material appears are considered worn.

Running too thin of a rotor will compromise brake bite as well as heat capacity. In extreme cases it can lead to rotor separation which will cause damage and potentially severe injury.

Rotor Shape:

Rotor Wear Issues

If the previous pads have worn shapes into the rotor your performance will be compromised. Whether the rotor shows knife edge, bulge or convex anything but parallel surfaces will cause contact patch issues.

These issues will create extreme “hot-spots” on the new brake pads which, in some conditions, can super heat the pad – glazing it and compromising the friction coefficient (bite, power, heat capacity are all effected).

We have seen cases where new brake pads become unusable due to this severe heat modifying the pad’s makeup glazing not just the contact surfaces but essentially glazing the entire pad material.

Contact issues between new and old pats and rotors

A rule of thumb is rotors should be replaced about every three or four sets of pads. It will pay dividends to check the rotor’s condition before installing new pads!

Shop MTB Rotors Here

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Additional information

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Compound Options:

H03C Metal, H03A Resin

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Saint 820, XT 8020, Zee 640