The facts.
| Part number | AGPA42OR |
|---|---|
| Compound | Organic (OR) |
| Dimensions | 50.9 × 53.9 × 7.3 mm |
| Material | Organic compound: organic resins, aramid fibres, graphite and metal powders |
| Friction coefficient | 0.41 average (0.36 minimum, 0.46 maximum), Ranzi test to European regulation |
| Density | 2.60 g/cm³ at 20 °C (+0.10 / −0.05) |
| Hardness | 100 HRR (± 10 HRR, Rockwell HRR scale) |
| Temperature resistance | 250 °C working, 400 °C maximum peak |
| Minimum shear strength | 20 kg/cm² |
| Contents | 2 brake pads, one set for one caliper |
DescriptionThe whole story▼
Behind the belly pan of a faired Ducati sits the part of the brake system nobody ever looks at. The rear caliper of the SuperSport 939 S lives in the spray thrown off the back tyre, close enough to the chain to collect whatever comes off it, and it is asked to do very little for years at a time. Accossato lists the AGPA42 for that caliper across the 2017 to 2020 seasons, and article AGPA42OR carries the Organic material, the version the firm associates with a long service life and with going easy on the disc it works against.
Key Features
- Rear brake pads for the Ducati SuperSport 939 S, 2017 to 2020
- AGPA42OR: the AGPA42 shape in the Organic material
- Accossato credits the compound with long life and restrained disc wear
- One caliper at the rear, so a single box is the whole axle
- Two pads in the box, the pair that caliper closes on
- Front pads for the same machine: the AGPA177, identical years
- The AGPA42 shape is also pressed in ST and ZXC
- No German ABE on file; sold as a competition part
Construction and Material Quality
Two things are claimed for this version and both suit the back of a sports machine. It is meant to keep working over a long period instead of disappearing inside a couple of summers, and it is meant to be kind to the disc underneath it. That second promise is worth more at the rear than most riders realise, because a rear disc is thin, cheap to ruin and tedious to replace once the wheel and the hugger are involved. The AGPA42 carrier is common to every version of the article, so the part number decides the friction surface and nothing else about the job.
The Corner Nobody Looks At
A rear brake on a fully faired motorcycle leads a strange life. It does perhaps a tenth of the work of the front, spends the rest of the time being rained on, and is hidden well enough that a wearing pad can reach its backing before anyone notices. Chain lubricant flung sideways lands on the disc face, road film builds up on the caliper body, and the sliding hardware gradually stops sliding. None of it is dramatic and all of it is expensive once it has been ignored for three seasons.
Half an hour once a year sorts it out. Get the SuperSport 939 S on a stand, turn the wheel and look at both pads rather than the one that is easy to see, feel whether the caliper still moves freely, and clean the disc face with something that leaves nothing behind. Keep chain lubricant away from it in the first place by wiping the excess off before the bike is ridden. If a pad is going down noticeably faster than its partner, find out why before fitting a new set, because a fresh pair will simply repeat the pattern.
Fitment and Compatibility
The rear entry for this Ducati opens in 2017 and closes in 2020, matching the years Ducati offered the SuperSport 939 S. A single caliper works back there, which makes one box a complete change. The front of the same motorcycle is covered by the AGPA177, and as that end runs two calipers it needs two boxes when its turn comes. Accossato also catalogues the DKS036 disc for the model. Because pad shapes in this range are shared between machines, an order quoting AGPA42OR is the unambiguous one.
Road Approval
An ABE for the AGPA42OR has never reached us, and no German test certificate came with the article, so it is listed for racing and closed-course use.
Scope of Delivery
One box containing two AGPA42 pads in the Organic material, which is the complete set for the single rear caliper of this machine.
Specifications
- Part number: AGPA42OR
- Compound: Organic (OR)
- Dimensions: 50.9 × 53.9 × 7.3 mm
- Material: Organic compound: organic resins, aramid fibres, graphite and metal powders
- Friction coefficient: 0.41 average (0.36 minimum, 0.46 maximum), Ranzi test to European regulation
- Density: 2.60 g/cm³ at 20 °C (+0.10 / −0.05)
- Hardness: 100 HRR (± 10 HRR, Rockwell HRR scale)
- Temperature resistance: 250 °C working, 400 °C maximum peak
- Minimum shear strength: 20 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▼
- Ducati SUPERSPORT 939 S (2017–2020)
- Aprilia RS 660 (2020–2025)
- Aprilia RSV4 1100 Factory (2019–2025)
- Aprilia RSV4 FACTORY (2009–2011, 2013–2016)
- Aprilia RSV4 RF (2015–2020)
- Aprilia TUONO V4 1100 (2015)
- Aprilia TUONO V4 1100 FACTORY (2015–2018)
- Aprilia TUONO V4 1100 RR (2015–2019)
- Benelli 502C (2019, 2023–2024)
- Benelli BN600 GT (2014–2015)
- Benelli BN600 R (2012–2017)
- Benelli LEONCINO 500 (2016–2017)
- Benelli LEONCINO 800 (2022–2023)
- Benelli TRK 502 (2016–2020)
- Bimota BB3 1000 (2014–2018)
- Bimota Tesi H2 1000 (2021–2024)
- CFMOTO 125NK (2024)
- CFMOTO 400SR S (2024)
- CFMOTO CL-X 700 SPORT (2022)
- Ducati HYPERMOTARD 821 (2013–2016)
- Ducati HYPERMOTARD 939 (2016–2018)
- Ducati HYPERMOTARD 950 (2019–2024)
- Ducati HYPERMOTARD 950 RVE (2020–2024)
- Ducati HYPERMOTARD 950 SP (2019–2024)
- Ducati Hyperstrada 821 (2013–2016)
- Ducati Hyperstrada 939 (2016–2018)
- Ducati MONSTER 1200 (2014–2021)
- Ducati MONSTER 1200 R (2016–2019)
- Ducati MONSTER 1200 S (2014–2021)
- Ducati MONSTER 821 (2014–2021)
- Ducati MONSTER 821 DARK (2015–2016)
- Ducati MONSTER 937 (2021–2024)
- Ducati Panigale 1199 R (2013–2015)
- Ducati Panigale 1299 (2015–2018)
- Ducati Panigale 1299 S (2015–2017)
- Ducati Panigale 1299 Superleggera (2017)
- Ducati Panigale 899 (2014–2015)
- Ducati Panigale 959 (2016–2020)
- Ducati Panigale V2 955 (2020–2024)
- Ducati Panigale V4 (2018–2026)
- Ducati Panigale V4 R (2019–2024)
- Ducati Panigale V4 S (2018–2026)
- Ducati Panigale V4 Superleggera (2020–2024)
- Ducati STREETFIGHTER 848 (2012–2015)
- Ducati STREETFIGHTER 848 S (2012–2015)
- Ducati STREETFIGHTER V2 955 (2022–2024)
- Ducati STREETFIGHTER V4 (2020–2026)
- Ducati STREETFIGHTER V4S (2020–2026)
- Ducati SUPERSPORT 939 (2017–2020)
- Ducati SUPERSPORT 950 (2020–2024)
- Ducati SUPERSPORT 950 S (2020–2024)
- Honda CBR 1000 RR-R (2020–2024)
- Honda CBR 1000 RR-R SP (2020–2025)
- Honda RC213V-S (2016–2018)
- Indian FTR 1200 (2019–2025)
- Indian FTR 1200 R CARBON (2021–2025)
- Indian FTR 1200 RALLY (2019–2024)
- Indian FTR 1200S (2019–2023)
- KTM 1290 SUPERDUKE GT (2016–2020)
- KTM 1290 SUPERDUKE R (2014–2022)
- KTM 1290 SUPERDUKE R EVO (2022)
- KTM RC8 890 C (2022–2024)
- KTM RC8 R 1190 (2009–2015)
- Kawasaki ZX1000 Ninja H2 (2015–2026)
- MV Agusta BRUTALE 1000 RR (2020–2025)
- MV Agusta Brutale 675 (2012–2015)
- MV Agusta Brutale 800 (2013–2025)
- MV Agusta Brutale 800 RR (2016–2025)
- MV Agusta Brutale Dragster RR 800 (2015–2025)
- MV Agusta F3 675 (2013–2020)
- MV Agusta F3 800 (2016–2025)
- MV Agusta RVS #1 800 (2018–2020)
- MV Agusta Rivale 800 (2013–2020)
- MV Agusta Rush 1000 (2020)
- MV Agusta STRADALE 800 (2015–2016)
- MV Agusta SUPERVELOCE 800 (2014–2025)
- MV Agusta TURISMO VELOCE LUSSO RC SCS 800 (2014–2025)
- Moto Guzzi NEVADA 750 (2003–2016)
- Moto Morini Corsaro ZT 1200 (2018–2020)
- Moto Morini Corsaro ZZ 1200 (2018–2020)
- Moto Morini Milano 1200 (2018–2024)
- Moto Morini Scrambler 1200 (2018)
- Moto Morini Super Scrambler 1200 (2020)
- Norton COMMANDO 961 SF (2013–2015)
- Norton COMMANDO 961 SF SPORT (2011–2015)
- Norton COMMANDO 961 SPORT (2018–2019)
- Norton DOMINATOR 961 (2017–2019)
- Norton V4 RR 1200 (2018–2019)
- QJMotor SRK 600 RR (2023)
- QJMotor SRK 800 RR (2024–2025)
- QJMotor SRK 900 RR (2024)
- QJMotor SVT-650 X (2024–2025)
- Triumph SPEED TRIPLE 1200 RR (2022)
- Triumph SPEED TRIPLE 1200 RS (2021–2025)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
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