Accossato rear brake pads AGPP89ST, sintered (st) compound, for Triumph TRIDENT 660
02 · Data & docs

The facts.

Technical data
Part numberAGPP89ST
CompoundSintered (ST)
Dimensions86 × 40 × 10.5 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▼

When the Trident 660 is used for trips with a passenger or through wet months, the rear brake takes on more of the load than in town. Accossato's AGPP89 rear pad in Sintered (ST) compound is made for that. According to Accossato, it keeps a high and constant grip level at both high and low temperatures and grips well in the wet. It is listed for the Triumph Trident 660 from 2021 to 2025.

Key Features

  • AGPP89 rear pad by Accossato, Sintered (ST) compound
  • Listed for the Triumph Trident 660, 2021-2025
  • Accossato: constant grip hot or cold, good wet performance
  • Supports the front brake when riding two-up
  • Predictable pedal feel on wet roads
  • Box contains the pair for the rear caliper
  • An OR version is offered for the same pad

Construction and Material Quality

Sintered pads from Accossato are described as holding their grip whatever the temperature and continuing to bite when the disc is wet. That matters for a rear brake that is used through a long descent or on a rainy commute. In common with all Accossato pads, the company promises slow wear, a design that limits heat and fade, and strong braking force.

Two-Up and in the Rain

With a pillion on board, the Trident 660 carries noticeably more weight at the back, and the rear brake becomes a real contributor rather than a helper. On a wet road, many riders also lean on it more gently and more often to keep the bike calm. In both cases, a pad that behaves the same from the first touch to the end of a long valley road is valuable. The ST compound is designed for that consistency. It also suits riders who keep the bike on the road in winter, when the rear disc sees spray and grime. If the Trident mainly does short, dry trips, the OR version is gentler on the disc.

Fitment and Compatibility

Accossato names AGPP89 for the rear of the Trident 660 in the years 2021 to 2025. At the front, the same bike takes AGPA72. The box contains the two pads for the single rear caliper. Inspect the rear disc and the fluid, clean the piston before retracting it and keep the disc free of chain lube and grease. Pump the pedal to pressure after fitting and bed the pads in.

Road Approval

No ABE or Prüfzeichen is on file for the AGPP89ST; we supply it for competition use.

Scope of Delivery

In the box: two Accossato AGPP89 rear pads, Sintered (ST) compound, for one caliper.

Specifications

  • Part number: AGPP89ST
  • Compound: Sintered (ST)
  • Dimensions: 86 × 40 × 10.5 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▼
  • Triumph TRIDENT 660 (2021–2025)
  • Kawasaki Z800 (2016–2019)
  • Triumph BONNEVILLE BOBBER (2017–2023)
  • Triumph TIGER 800 XC (2011–2020)
  • Triumph TIGER 800 XCA (2015–2020)
  • Triumph TIGER 800 XCX (2018–2020)
  • Triumph TIGER 800 XR (2015–2020)
  • Triumph TIGER 800 XRT (2018)
  • Triumph TIGER 800 XRX (2015–2018)
  • Triumph TIGER 800 XRX LOW (2018–2020)
  • Triumph TIGER SPORT 660 (2022–2025)
  • Yamaha XJ6 DIVERSION (2009–2015)
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08 · Paddock

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