Shimano J05A-RF Disc Brake Pad and Spring - Resin | Finned

Shimano J05A-RF Disc Brake Pad and Spring - Resin | Finned Shimano

Shimano J05A-RF Disc Brake Pad and Spring - Resin | Finned

Shimano J05A-RF Disc Brake Pad and Spring - Resin | Finned

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Why Choose the Shimano J05A-RF Disc Brake Pad?

The Shimano J05A-RF is the premium resin replacement pad for mid to high-end Shimano MTB hydraulic disc calipers, spanning XTR M9000, Deore XT M8000 and M8100, SLX M7000 and M7100, and Deore M6000 and M6100. Built on Shimano's 5th-generation resin friction material, the J05A-RF delivers quieter operation and improved modulation over older resin compounds, with 50% better wear resistance than the J03A and 110% better than the J02A. The integrated alloy radiator fin actively pulls heat away from the pad during sustained braking, maintaining consistent feel and reducing fade on technical descents where brake heat builds quickly.

The narrow type J pad shape fits 2-piston Shimano hydraulic MTB calipers and uses an alloy back plate for rigid, rattle-free pad support. Compatibility spans BR-M9000, BR-M9020, BR-M987, BR-M985, BR-M8100, BR-M8000, BR-M785, BR-M7100, BR-M7000, BR-M675, BR-M666, BR-M6100, BR-M6000, BR-M615, BR-RS785, BR-R785, BR-S700, and BR-U8000. Each package includes one pair of pads with spring. The J05A-RF is the right choice for trail and enduro riders who want resin braking feel with meaningfully better longevity and heat management than previous Shimano resin generations.

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  • Estimated delivery: May 24 - May 28

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Specifications

  • Model: BP-J05A-RF
  • Lining Material: Resin (5th generation)
  • Pad Shape: Narrow type, J
  • Piston Compatibility: 2-piston brake caliper
  • Back Plate: Alloy
  • Radiator Fin: Yes -- alloy fin for heat dissipation
  • Wear Improvement: 50% better than J03A, 110% better than J02A
  • Package: 1 pair with spring
  • Compatible Calipers: BR-M9000, BR-M9020, BR-M987, BR-M985, BR-M8100, BR-M8000, BR-M785, BR-M7100, BR-M7000, BR-M675, BR-M666, BR-M6100, BR-M6000, BR-M615, BR-RS785, BR-R785, BR-S700, BR-U8000

FAQ

Will the J05A-RF fit my Shimano Deore XT M8100 or XTR M9100 caliper?

The J05A-RF fits the Deore XT BR-M8100 but not the XTR BR-M9100 series. The M9100 series uses a different pad format. For XTR M9100, check Shimano compatibility for the N03A-RF or K05S-RX.

What is the advantage of the alloy radiator fin on the J05A-RF?

The alloy fin increases surface area for heat dissipation during braking, which reduces pad fade and extends pad life on long or steep descents where brake temperatures build significantly.

Does this pad include the spring?

Yes. Each package includes one pair of J05A-RF pads with the retaining spring included.

Best For

Trail and enduro MTB riders running Shimano Deore through XTR M9000-generation 2-piston hydraulic calipers who want longer-lasting resin braking feel with active heat management on sustained technical descents.

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