Shimano BP-K05S-RX Resin Disc Brake Pads

Shimano K-Type Flat Mount Resin Disc Brake Pads (BP-K05S-RX)

Upgrade your road, gravel, or urban setup with genuine Shimano BP-K05S-RX resin disc brake pads. Engineered as the updated successor to the widely used K03S model, the K05S formulation delivers approximately 40% improved wear resistance over previous organic compounds without sacrificing the smooth lever control and whisper-quiet operation riders depend on.

Featuring a durable steel backplate and a slim K-Type profile, these pads are specifically designed to fit Shimano's flat-mount hydraulic disc brake calipers across Dura-Ace, Ultegra, 105, GRX, and Tiagra groupsets. Supplied in individual retail packaging complete with pad spring and safety clip.

Key Features

• Upgraded K05 Resin Formula: Provides roughly 40% greater longevity than older K03S pads, giving you significantly more distance between replacements.

• Exceptional Modulation & Silence: Synthetic organic compound offers immediate low-temperature bite, predictable lever feedback, and virtually noise-free braking.

• Durable Steel Backplate: Rigid backing plate ensures even piston engagement and consistent pressure distribution.

• Complete Individual Retail Packaging: Each pack includes 1 pair of pads (for 1 caliper), 1 pad spring, and 1 safety pin/clip.

Caliper Compatibility

Designed specifically for Shimano K-Type 2-piston flat-mount road, gravel, and urban hydraulic calipers:

• Dura-Ace: BR-R9270, BR-R9170

• Ultegra: BR-R8170, BR-R8070

• 105: BR-R7170, BR-R7070

• GRX: BR-RX820, BR-RX810, BR-RX400

• Tiagra / Non-Series Road: BR-4770, BR-RS805, BR-RS505, BR-RS405, BR-RS305

• Metrea / Urban: BR-U5000

Specifications

• Pad Shape: K-Type (Narrow Flat Mount Profile)

• Friction Material: Resin / Organic

• Backplate Material: Steel

• Piston Compatibility: 2-Piston Flat Mount Calipers

• Package Contents: 1 Pair of brake pads, 1 spring, 1 safety pin

Pros & Cons

• 40% better wear life compared to legacy K03S resin pads

• Silent braking performance with zero squeal under normal dry and damp conditions

• Rotors experience minimal wear due to soft organic friction material

• Includes official replacement spring and safety clip for easy installation

• Less suited for heavy mud/grit compared to sintered metal pads (L/K metal series)

• Does not fit wide-type MTB calipers (requires G, B, or D-type pads depending on caliper)

BP-B05S-RX  User Manual

Shimano Warranty

All product warranties are in accordance with the manufacturer's policy (see link in the product details above). In most cases, this is a limited warranty that applies only to the original owner and excludes normal wear and tear, accidental damage, negligence (failure to clean/maintain the product), and improper installation (see User Manual link in the product details above). However, if you experience a problem with the product you purchased from bicyquel _ (original invoice required), please let us know so we can assist you with the appropriate procedure.