SHIMANO J03A disc brake pads and spring, alloy backed with cooling fins, resin

These Shimano J03A Resin disc brake pads are 40% more durable than the previous version, the Shimano J02A Resin disc brake pads. This durability has been achieved without compromising the quick engagement and low noise produced by these brake pads. The cooling fins also provide improved heat dissipation, ensuring continued sufficient braking power even on long descents. Organic compound Organic brake pads consist of soft materials, which give them excellent modulation and braking power, and make them engage quickly and produce little noise during braking. The downside of organic brake pads is that they do not manage higher temperatures which may develop during long descents, for example, very well. While the addition of cooling fins has already proven to improve this aspect, organic brake pads remain less heat resistant than brake pads with a harder, (semi-)metallic compound. Also, harder brake pads remain more wear-resistant than the organic J03A Resin disc brake pads. In short, if you often cycle in (relatively) flat areas and in dry weather, the J03A brake pads are an excellent choice. They will also perform well on descents in low mountain ranges, although they will wear more quickly, so remember to bring a spare set if you're going to cycle for several days. If you're going to be riding in muddy conditions or know you're going to have to do a lot of braking, we recommend considering brake pads with a semi-metallic or metallic compound. Note: Manufacturers use different sizes and fits. Make sure that the shape of the brake pad in the image corresponds with your current brake pad. Not sure what shape your brake pads are? Scroll down on this page to where you find which brake pad is suited for which type of brake.

Compatibility

Shimano A: Mountain bike: Deore M615, M6000 / XT M785, M8000, M8100 / SLX M685, M7000, M7100 / XTR M985, M9000, M9100 and more Road bike: CX77 / R315 / R317 / R515 / 517 / R785 / RS785 and more