Accossato rear brake pads AGPP99 for Yamaha YZF-R125 (2019-2024)
02 · Data & docs

The facts.

Technical data
Part numberAGPP99ST
CompoundSintered (ST)
Dimensions62 × 40 × 9 mm
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▼

For the Yamaha YZF-R125 from 2019 to 2024, Accossato's AGPP99 rear pad is also available in the Sintered (ST) compound. It is intended for riders who use the bike every day of the year, in rain, cold and heat, sometimes with a passenger. Accossato describes the sintered material as keeping a high, constant grip level at low and high temperatures and gripping well in the wet, so the rear brake responds in the same way whatever the weather.

Key Features

  • Rear brake pads for the Yamaha YZF-R125, 2019 to 2024
  • AGPP99 outline in the Sintered (ST) compound, code AGPP99ST
  • Constant grip in cold and hot conditions, according to Accossato
  • Good grip in the wet
  • Two pads per box for the rear caliper
  • Also listed in the OR compound
  • No German ABE held; for track use

Construction and Material Quality

Accossato's sintered AGPP99 is about consistency: high friction that changes little between cold and hot, and good grip when wet. For the rear brake of a year-round commuter, that is what counts. The pads are also designed for long wear and limited fade. Two pads come in the box, one set for the caliper.

All Year on the R125

Riders who commute through every season need a rear brake that does not become unpredictable on a cold, wet morning. The sintered AGPP99 responds reliably when the disc is soaked, which helps stabilise the bike in slippery conditions. With a passenger on board, the rear brake takes more of the load, and a consistent pad makes that easier to manage. For dry town riding, the OR version is the quieter, gentler option.

Care in Winter

Road salt and grime shorten pad life. Rinse the rear brake with clean water after salty rides, check pad thickness more often in winter and inspect the disc for corrosion. When changing pads, clean the pistons and pump the pedal until firm afterwards.

Fitment and Compatibility

The AGPP99 fits the rear of the Yamaha YZF-R125 from 2019 to 2024, according to Accossato. The 2008 to 2018 bikes use the AGPA173 at the rear. The front of the R125 takes the AGPA101 from 2014 to 2024, and the DK245 is Accossato's disc for the model.

Road Approval

We have no approval documents or German ABE for this pad, which is therefore sold for track and competition riding.

Scope of Delivery

One box with two sintered rear pads for the YZF-R125 rear caliper.

Specifications

  • Part number: AGPP99ST
  • Compound: Sintered (ST)
  • Dimensions: 62 × 40 × 9 mm
  • 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▼
  • Yamaha YZF-R125 (2019–2024)
  • Yamaha MT 15 MT 155 (2018–2021)
  • Yamaha MT-125 (2020–2026)
  • Yamaha XSR 125 (2022–2026)
  • Yamaha XT250 (2008–2022)
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