Quick Summary
PACYTION bicycle disc brake pads come in a four-pair pack with three installation tools. The pads have mixed semi-metallic construction with copper fiber and organic resin, and are listed for specific Shimano and Tektro brake models. Check the exact brake caliper model and required pad shape before choosing replacement pads.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Replacement bicycle disc brake pads, supplied as four pairs or eight pads. |
| Material | Mixed semi-metallic construction with copper fiber and organic resin. |
| Pad dimensions | 30.6 mm long, 35 mm wide and 4 mm thick. Compare the dimensions and shape with the pads required for your brake. |
| Included tools | One disc brake gap regulator, one hydraulic brake piston press tool and one hex wrench. |
What to Compare Before Buying
- Caliper model: Pad selection depends on the brake caliper, not just the bicycle type or brand. Confirm the exact caliper model.
- Pad code and shape: The listing names B01S, B03S, B05S, B01M and B03M codes. Check the code and shape specified for your brake system.
- Pack quantity: The package contains four pairs. Confirm that quantity matches your replacement needs.
Compatibility, Size and Fit
The listed Shimano models are MT200, M355, M446, M315, M365, MT400, MT500, M375, M395, M415, M416, M445, M447, M465, M475, M485, M486, M495, M525, M575, TX805, T615, T675, M4050, M3050, UR300 and C501. Listed Tektro references include HD-M740, M730, M520, M521, M510, M500 and M501. The listing also names B01S, B03S, B05S, B01M and B03M pad codes. These are specific fit references, not confirmation of compatibility with every brake from either brand. Verify the caliper model and required pad shape before installation.
What Is Included
The described package contains four pairs of pads, a disc brake gap regulator, a hydraulic brake piston press tool and a hex wrench. The included tools do not establish that the pads fit a particular caliper.
Before You Decide
Match the exact caliper model and required pad shape, then confirm the dimensions and pack quantity. Brakes are safety-critical: follow the applicable brake and tool instructions, and seek qualified help if you are unsure about installation or checking the brake.









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