Shimano 2 Piston Pads K04Ti, K04S, & K03S

$12.00$28.00

Shimano 2 Piston Pads, K04Ti, K04S & K03S

Replacement pads for Shimano XTR BR-M9100 brakes.

Metal:

Rigid compound designed for longer service life, high power in severe conditions, muddy and sandy conditions.
K04Ti: pn: Y8PU98020
K04S: pn:Y8N398020

Resin:

Flexible compound designed for less noise, focus on controllable performance, designed for wet and dry conditions.
K03S: pn:Y8Y898010

 

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)

Inventory Updated 5/21/22

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Description

shimano K04Ti Metal brake pads pn: Y8PU98020

Shimano K04Ti Metal Pad with Titanium backer


UPC: 689228694675
PRODUCT CODE: Y8PU98020

Sintered Metal pad with consistent, high stopping power in wet or dry conditions and excellent durability
Titanium backing plate for light weight and improved heat insulation

shimano K03S Resin brake pads pn: Y8Y898010

Shimano K04S Metal Pads


UPC: 689228383739
PRODUCT CODE: Y8N398020

Sintered Metal pad with consistent, high stopping power in wet or dry conditions and excellent durability
Ventilated steel backing plate for improved heat dispersion

shimano K03S Resin brake pads pn: Y8Y898010

Shimano K03S Resin Pad with Fins


UPC: 192790451732
PRODUCT CODE: Y8Y898010

Less noise than Metal pads

Shimano XTR M9100 brake pads

Shimano K04Ti, K04S and K03S Compatibility


Compatible with Shimano 2 piston brakes including:

XTR BR-M9100

BR-M9170, BR-M8070, BR-M7070, BR-M470, BR-RS805, BR-RS505, BR-RS405, BR-RS305, BR-U5000, BR-RX810, BR-RX400

shimano XTR M9000 vs XTR M9100 brake pads

XTR 9000 vs XTR 9100

The XTR 9100 Race brakes use the K04Ti, K04S or K03S brakes on this page.

XTR 9000 and XTR 9020 brakes use the pads linked below.

Other Shimano 2 Piston Brake Pads

Shimano XTR M9000, XTR M9020,  XT M8100, XT M8000, SLX M7100 and SLX M7000 use G03A, G03S, G04S and G04Ti non-finned options or the J03A or J04C finned pads.

shimano j03a resin brake pads with fins pn: Y8Z298010

Shimano 2 piston pads J03A or J04C with fins will work with most brakes spec’d with G04ti, G04S, G03A and G03S pads.

 

shimano G04Ti metal pads pn: Y8LW98010

Shimano 2 piston pads G04ti, G04S, G03A and G03Swithout fins will work with brakes spec’d with J03A or J04C pads.

Shimano 2 piston brake pad compatibility

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

Compound Options:

K04Ti Metal, K04S Metal, K03S Resin

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XTR 9100