The facts.
| Part number | AGPP80ST |
|---|---|
| Compound | Sintered (ST) |
| Dimensions | 64 × 42 × 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 |
DescriptionThe whole story▼
Race pace asks more of a 450SX-F's rear caliper than the softer Organic pad in this range is built to give, especially once the track has chopped up and every stab of the rear brake has to work through ruts and braking bumps rather than smooth, settled dirt. Accossato's Sintered (ST) rear pad, listed across the 2003 to 2026 production run, holds a steady, higher level of grip through exactly that punishment.
Key Features
- Sintered (ST) compound for the KTM 450SX-F rear caliper
- Listed by Accossato across the 2003 to 2026 production run
- High, constant grip claimed by the maker at hot and cold temperatures
- Keeps biting once the disc has picked up mud or standing water
- Suited to race-pace riding on a chopped-up, demanding track
- OR and STMX rear compounds exist for the same caliper
- Two pads per box, enough for one rear caliper
Construction and Material Quality
Accossato describes this ST mixture as holding a steady, high level of grip whether cold or already hot, and continuing to bite once the disc has picked up water rather than losing feel. Late in a moto, with the track rutted and the rear brake doing real work through every bump and off-camber section, that kind of consistency matters more than the gentler, more forgiving character the Organic compound offers earlier in the day.
Holding Up Through a Full Moto
A motocross race does not get easier as it goes on; the track degrades, the ruts deepen, and the rear brake is asked to do more precise, demanding work in the closing laps than in the opening ones. This Sintered pad is built to meet that increasing demand, giving the rider the same rear-end feel deep into the race as at the start rather than a bite that quietly fades away along with the rest of a tiring pack.
Fitment and Compatibility
Accossato lists this ST rear pad for the KTM 450SX-F across the 2003 to 2026 production run. Match your exact model year against the maker's own reference before ordering, since a production run this long covers several small detail changes along the way; OR and STMX remain the alternatives for this same rear caliper, for lighter practice sessions or genuinely muddy, loose conditions respectively.
Road Approval
No approval paperwork, such as a German ABE or a type approval mark, is available to us for this pad, so it is listed for racing and competition use. The 450SX-F is a closed-course machine and is not intended for public roads in any case.
Scope of Delivery
Two brake pads in the box, one set for a single rear caliper. Mounting hardware such as pins or springs is not part of the package.
Specifications
- Part number: AGPP80ST
- Compound: Sintered (ST)
- Dimensions: 64 × 42 × 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)
FitmentWhich bikes this fits▼
- KTM 450SX-F (2003–2026)
- GasGas EC 250 (2021–2023)
- GasGas EC 300 (2021–2023)
- GasGas MC 250 (2021–2026)
- GasGas MC 250F (2021–2026)
- GasGas MC 450F (2021–2026)
- Husqvarna FC 250 (2014–2026)
- Husqvarna FC 350 (2014–2026)
- Husqvarna FC 450 (2014–2026)
- Husqvarna FE 250 (2014–2023)
- Husqvarna FE 450 (2014–2023)
- Husqvarna FE 501 (2014–2023)
- Husqvarna FS 450 (2015–2022)
- Husqvarna FX 450 (2017–2020)
- Husqvarna TC 125 (2014–2026)
- Husqvarna TC 250 (2014–2022)
- Husqvarna TE 125 (2014–2016)
- Husqvarna TE 250 (2014–2018)
- Husqvarna TE 300 (2014–2023)
- Husqvarna TX 125 (2017–2019)
- KTM 125SX (2004–2026)
- KTM 150SX (2009–2022)
- KTM 250EXC-F (2006–2023)
- KTM 250SX (2003–2026)
- KTM 250SX-F (2005–2026)
- KTM 300EXC (2004–2008, 2018–2023)
- KTM 350EXC-F (2012–2023)
- KTM 350SX-F (2011–2026)
- KTM 450 SMR (2004–2025)
- KTM 450EXC-F (2004–2023)
- KTM 450XC-F (2006–2023)
- KTM 500EXC-F (2012–2024)
- SWM RS 300 R (2015–2020)
- SWM RS 500 R (2015–2020)
- SWM SM 500 R (2018–2020)
- Sherco SE 125 (2017–2019)
- Sherco SE 300 (2014–2019)
- Sherco SEF 250 (2014–2019)
- Sherco SEF 300 (2014–2019)
- Sherco SEF 450 (2014–2019)
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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.
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Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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