Accossato front brake pads AGPA125ST, sintered (st) compound, for BMW R1300GS ADVENTURE
02 · Data & docs

The facts.

Technical data
Part numberAGPA125ST
CompoundSintered (ST)
MaterialSintered copper friction material with abrasives and carbon
Friction coefficient0.46 average, 0.52 maximum (dyno test to JASO standard)
Density4.50 g/cm³ at 20 °C (+0.10 / −0.05)
Hardness90 HRR (± 10 HRR, Rockwell HRR scale)
Temperature resistance450 °C working, 600 °C maximum peak
Minimum shear strength30 kg/cm²
Contents2 brake pads, one set for one caliper
DescriptionThe whole story▼

Fill the tank of an R 1300 GS Adventure, strap on soft luggage, add a passenger and two weeks of belongings, and the machine that leaves the driveway has little to do with the one in the brochure photograph. All of that mass has to be brought back to walking pace at the end of every day. Accossato's AGPA125 front pad in the Sintered (ST) compound is listed for the BMW R 1300 GS Adventure of 2025 and 2026, and it is the load the pads have to answer to.

Key Features

  • Front pads for the BMW R 1300 GS Adventure, model years 2025 and 2026
  • AGPA125ST: Accossato's AGPA125 shape carrying the Sintered (ST) mixture
  • The maker cites steady grip across the temperature range and on wet discs
  • A sensible choice for a heavily loaded long-distance machine
  • Two pads per box, which is one caliper's fill
  • Twin front discs, one caliper each, so plan on a pair of boxes
  • Both sides of the axle are renewed at the same time
  • No German ABE documented; intended for track and competition riding

Construction and Material Quality

Accossato cuts the AGPA125 to a single outline and offers it with different friction mixtures; the suffix ST marks the sintered version. What the company says about that mixture is worth reading in two parts. It keeps a high level of grip and it keeps it constant, whether the caliper is stone cold or thoroughly warmed through, and it works when the disc is streaming with rain. Materials in this family also part with their thickness slowly, which is a practical virtue on a bike whose owner may be a long way from a workshop when the pads finally need attention.

Weight You Cannot Argue With

Luggage changes the arithmetic of stopping. The same lever pressure that was plenty on an empty bike now produces a longer, lazier slowdown, and the extra mass sits high and behind you, pushing the machine on rather than settling it. Riders who tour on an R 1300 GS Adventure learn to leave far more room than they need, to begin slowing well before they think it necessary, and to brake in a straight line whenever the surface is doubtful. There is a second effect further down the day. Repeated stops on a heavy, laden bike put a great deal of energy into the discs, and if a compound softens as it heats, the lever creeps towards the bar just as the traffic gets busier. A material that stays even through that is one less thing to think about at the end of a long stage. Pack the tools for a pad change if the journey is a long one; a set fitted at home is cheaper than one bought on a Sunday in a strange town.

Fitment and Compatibility

The application list places the AGPA125 at the front of the BMW R 1300 GS Adventure for 2025 and 2026. The front wheel runs two discs and two calipers, so a full set means ordering twice, and the left and right pads belong in the bike together. Before fitting, hold a new pad against an old one to see that outline and thickness agree, clean the caliper out, and push the pistons back gently rather than forcing them. When the wheel is back in, work the lever until pressure has returned before the bike moves.

Road Approval

No approval paperwork has reached us for this pad: no German ABE, no test report, nothing that would speak for it in public traffic. We offer it for competition and closed courses.

Scope of Delivery

One box with two Accossato AGPA125 pads in the Sintered (ST) compound, enough for a single front caliper.

Specifications

  • Part number: AGPA125ST
  • Compound: Sintered (ST)
  • Material: Sintered copper friction material with abrasives and carbon
  • Friction coefficient: 0.46 average, 0.52 maximum (dyno test to JASO standard)
  • Density: 4.50 g/cm³ at 20 °C (+0.10 / −0.05)
  • Hardness: 90 HRR (± 10 HRR, Rockwell HRR scale)
  • Temperature resistance: 450 °C working, 600 °C maximum peak
  • Minimum shear strength: 30 kg/cm²
  • Contents: 2 brake pads, one set for one caliper
What's includedEverything in the box▼
  • 1x Accossato brake pad set (2 pads)
DownloadsData sheet▼
FitmentWhich bikes this fits▼
  • BMW R1300GS ADVENTURE (2025–2026)
  • BMW R1300GS (2024)
  • BMW R1300R (2026)
  • BMW R1300RS (2026)
  • BMW R1300RT (2025–2026)
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08 · Paddock

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