Accossato off-road sintered brake pads, rear, AGPP90STMX for Kawasaki KLX 250 (1998-2021) — placeholder, product photo coming soon
02 · Data & docs

The facts.

Technical data
Part numberAGPP90STMX
CompoundOff-road sintered (STMX)
Dimensions75 × 36.4 × 9.7 mm
MaterialSintered copper friction material with abrasives and carbon, for off-road use
Friction coefficient0.65 average (0.58 minimum, 0.72 maximum), JASO regulation
Density4.50 g/cm³ at 20 °C (+0.10 / −0.05)
Temperature resistance450 °C working, 600 °C maximum
Contents2 brake pads, one set for one caliper
DescriptionThe whole story▼

Some Kawasaki KLX 250 owners use the bike as a proper trail machine, riding through muddy forest tracks, sandy paths and shallow streams at the weekend. For them Accossato makes the AGPP90 rear pad in its Off-road sintered mixture, coded STMX. It fits the KLX 250 family from 1998 to 2021 and is designed for riders who spend their free time off the tarmac and need a rear brake built for dirt.

Key Features

  • Rear pads AGPP90 for the Kawasaki KLX 250, 1998 to 2021
  • STMX compound, SKU AGPP90STMX
  • Accossato's compound for off-road riders
  • Suited to mud, sand and dusty trails
  • For enduro-style weekend rides
  • Fits the KLX 250, 250 S and 250 SF versions listed
  • Also produced as OR and ST
  • No ABE held by us; for track use

Construction and Material Quality

Accossato presents STMX simply as its compound for off-road riders, and we do not add further technical claims. What the company says about all its pads applies too: slow wear, fade resistance thanks to limited heat build-up and strong stopping force. On a KLX 250 used on trails, the rear brake works in dirt, water and grit, which is the environment this compound is intended for. It is bonded to the AGPP90 plate.

Mud, Sand and Water Crossings

On a muddy forest trail, the rear brake of a KLX 250 is often more useful than the front. Riders use it to control speed on descents, to slide the rear round a tight turn and to slow gently on slippery ground. A compound made for off-road use is designed to keep working when the caliper is caked in mud.

Sand and fine dust are abrasive, and water crossings wash grit into the caliper. After a day on the trails, hose off the bike, paying attention to the rear caliper, and check that the pads move freely. Look at the disc for deep scoring caused by trapped grit.

Before the next ride, check the pad depth, since off-road use can wear pads faster than road riding. Clean the piston before pushing it back during a pad change and pump the pedal until firm.

Fitment and Compatibility

Model years 1998 to 2021 of the KLX 250 take AGPP90 at the back, according to Accossato; its list mentions the base KLX 250, the dual-purpose S and the SF. Trail riders with a 2009 or newer bike will find AGPA76 as the matching front part. There is one rear caliper, so one box of STMX pads is needed.

Road Approval

We have no ABE or German test certificate for AGPP90STMX. The pads are sold for off-road competition use.

Scope of Delivery

Two STMX rear pads, one caliper set.

Specifications

  • Part number: AGPP90STMX
  • Compound: Off-road sintered (STMX)
  • Dimensions: 75 × 36.4 × 9.7 mm
  • Material: Sintered copper friction material with abrasives and carbon, for off-road use
  • Friction coefficient: 0.65 average (0.58 minimum, 0.72 maximum), JASO regulation
  • Density: 4.50 g/cm³ at 20 °C (+0.10 / −0.05)
  • Temperature resistance: 450 °C working, 600 °C maximum
  • 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▼
  • Kawasaki KLX 250 (1998–2021)
  • Suzuki DR-Z400S (2000–2016)
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