Accossato rear brake pads AGPP91ST, sintered (st) compound, for Zero DS
02 · Data & docs

The facts.

Technical data
Part numberAGPP91ST
CompoundSintered (ST)
Dimensions78 × 41.3 × 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▼

Plenty of 2014 to 2017 Zero DS owners still ride their electric dual-sport every day, including through wet winters. For the rear caliper, Accossato offers the AGPP91 pad in the Sintered (ST) compound, and it fits every battery version Accossato records for those years, from the early ZF8.5 to the ZF13.0. The manufacturer says its sintered material keeps high, constant grip at low and high temperatures and grips well in the wet.

Key Features

  • Rear brake pads for the Zero DS, 2014 to 2017
  • Six battery versions covered, from ZF8.5 to ZF13.0
  • AGPP91 outline in the Sintered (ST) compound, reference AGPP91ST
  • Stable grip across temperatures, per Accossato
  • Reliable when the disc is wet
  • Two pads per box for the rear caliper
  • No German ABE held; for track use

Construction and Material Quality

Accossato's sintered AGPP91 is designed for consistency: high friction that changes little between cold and hot, plus good wet grip. For the rear brake of an older DS that is used through every season, that predictability matters. The pads are built for long wear and low fade. OR and STMX versions of the AGPP91 are also listed. Each box contains two pads, the set for one caliper.

Gravel, Rain and Back Lanes

The DS was designed to cope with more than tarmac, and many owners use it on unpaved lanes and gravel roads. There, the rear brake is used carefully to avoid locking the wheel, often on a wet disc. A sintered pad gives a consistent response that helps the rider find the limit of grip. For town-only use in dry weather, the organic version is gentler; for heavy mud, the STMX version is designed for off-road riders.

Checking an Older Brake

On a bike that is several years old, look at the whole rear brake when changing pads: pistons, seals, fluid and disc. Clean the pistons before retracting them, replace old fluid and pump the pedal until firm after fitting.

Fitment and Compatibility

Four model years share this rear pad: every DS from 2014 to 2017, regardless of battery size. Should you own the 2024 bike, order the AGPA29 instead. Winter riders who want a matching front will find the AGPA92 listed for 2015 to 2017, also in ST, and the AGPA96 for 2024. A 2014 DS has no Accossato front pad in our data, so for that year only the rear is covered.

Road Approval

No German ABE or test certificate is on file for this pad. We sell it for track and competition riding.

Scope of Delivery

Two sintered rear pads in one box, the set for the Zero DS rear caliper.

Specifications

  • Part number: AGPP91ST
  • Compound: Sintered (ST)
  • Dimensions: 78 × 41.3 × 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▼
  • Zero DS (2014–2017)
  • Aprilia CAPONORD 1200 (2013–2019)
  • Aprilia CAPONORD 1200 RALLY (2015–2019)
  • Aprilia DORSODURO 750 (2008–2018)
  • Aprilia DORSODURO 900 (2018–2020)
  • Aprilia RS 457 (2024–2025)
  • Aprilia SHIVER 750 (2007–2018)
  • Aprilia SHIVER 900 (2018–2020)
  • Aprilia TUAREG 660 (2022–2025)
  • Aprilia TUAREG 660 RALLY (2025)
  • BMW F700GS (2013–2016)
  • BMW F750GS (2018–2024)
  • BMW F800GS (2008–2018)
  • BMW F800GT (2013–2020)
  • BMW F800R (2009–2018)
  • BMW F850GS (2018–2023)
  • BMW F900GS (2024–2026)
  • BMW F900GS ADVENTURE (2024–2026)
  • BMW F900R (2020–2026)
  • BMW F900XR (2020–2026)
  • BMW G310GS (2017–2026)
  • BMW G310R (2016–2026)
  • BMW G650GS (2009–2015)
  • BMW M1000R (2023–2026)
  • BMW S1000R (2013–2024)
  • BMW S1000RR (2009–2024)
  • Benelli TRK 702 (2024)
  • Benelli TRK 702 X (2023–2025)
  • CFMOTO 700MT (2024–2025)
  • CFMOTO MT 450 (2024–2026)
  • Ducati HYPERMOTARD 698 Mono (2024–2026)
  • Ducati MONSTER 797 (2017–2021)
  • Ducati SCRAMBLER 1100 (2018–2024)
  • Ducati SCRAMBLER 1100 SPECIAL (2018–2019)
  • Ducati SCRAMBLER 1100 SPORT (2018–2024)
  • Ducati SCRAMBLER 800 (2017–2025)
  • Ducati SCRAMBLER CLASSIC (2015–2019)
  • Ducati SCRAMBLER ICON (2015–2026)
  • Ducati SCRAMBLER SIXTY2 (2016–2020)
  • Fantic Motor Caballero 500 (2017, 2022–2023)
  • Husqvarna ENDURO 701 (2017–2024)
  • Husqvarna SUPERMOTO 701 (2015–2024)
  • Husqvarna SVARTPILEN 125 (2021–2025)
  • Husqvarna SVARTPILEN 401 (2017–2025)
  • Husqvarna SVARTPILEN 701 (2019–2020)
  • Husqvarna SVARTPILEN 801 (2025)
  • Husqvarna VITPILEN 125 (2021–2025)
  • Husqvarna VITPILEN 401 (2017–2025)
  • Husqvarna VITPILEN 701 (2018–2020)
  • Husqvarna VITPILEN 801 (2025)
  • Husqvarna VITPILEN 801 CUSTOM (2025)
  • Indian SCOUT BOBBER (2017–2024)
  • KTM 125 DUKE (2011–2019)
  • KTM 200 DUKE (2012–2017)
  • KTM 250 DUKE (2014–2015)
  • KTM 390 ADVENTURE (2020–2023)
  • KTM 390 ADVENTURE SW (2023)
  • KTM 390 DUKE (2013–2023)
  • KTM 690 DUKE (2008–2019)
  • KTM 690 DUKE R (2010–2017)
  • KTM 690 ENDURO R (2009–2023)
  • KTM 690 SMC R (2007–2011, 2014–2024)
  • KTM 790 DUKE (2018–2020)
  • KTM 890 DUKE R (2020–2023)
  • KTM 990RC R (2025–2026)
  • KTM RC 125 (2014–2024)
  • KTM RC 200 (2014–2024)
  • KTM RC 250 (2014–2015)
  • KTM RC 390 (2014–2025)
  • KTM RC4R 250 (2020)
  • Royal Enfield CONTINENTAL GT 650 (2020–2025)
  • Royal Enfield Classic 350 (2023–2025)
  • Royal Enfield Classic 500 (2019)
  • Royal Enfield HIMALAYAN 411 (2019–2023)
  • Royal Enfield Interceptor 650 (2019–2023)
  • Royal Enfield METEOR 350 (2021–2025)
  • SWM SUPERDUAL T (2015–2018)
  • Triumph Daytona 675 (2013–2018)
  • Triumph Daytona 675 R (2013–2018)
  • Triumph Daytona 765 Moto 2 (2020–2022)
  • Triumph SCRAMBLER 400X (2024–2026)
  • Triumph SPEED 400 (2024)
  • Triumph STREET TRIPLE 660 S (2017–2020)
  • Triumph STREET TRIPLE 675 (2013–2016)
  • Triumph STREET TRIPLE 675 R (2013–2018)
  • Triumph STREET TRIPLE 675 RX (2015–2016)
  • Triumph STREET TRIPLE 765 R LOW (2017–2023)
  • Triumph STREET TRIPLE 765 S (2017–2020)
  • Triumph Street Triple 765 R (2017–2023)
  • Triumph Street Triple 765 RS (2017–2025)
  • Triumph TIGER 1200 GT (2022–2025)
  • Triumph TIGER 1200 GT EXPLORER (2022–2023)
  • Triumph TIGER 1200 GT PRO (2022–2025)
  • Triumph TIGER 900 (2020–2023)
  • Triumph TIGER 900 GT (2020–2025)
  • Triumph TIGER 900 GT LOW (2020–2025)
  • Triumph TIGER 900 GT PRO (2020–2025)
  • Triumph TIGER 900 RALLY (2020–2025)
  • Triumph TIGER 900 RALLY PRO (2025)
  • Triumph TIGER SPORT 800 (2025)
  • Triumph TIGER SPORT 850 (2021–2023)
  • Voge 900DSX (2024–2026)
  • Yamaha TENERE 700 (2019–2026)
  • Yamaha TENERE 700 WORLD RAID (2022–2026)
  • Yamaha WR 125R (2009–2016)
  • Yamaha XT660Z TENERE (2008–2015)
  • Zero DSR (2016–2017)
  • Zero FXE (2022)
  • Zero FXS (2016–2022)
  • Zero S (2014–2017, 2024)
  • Zero SR (2014–2017, 2019–2021, 2024)
07 · Support

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