Accossato fixed rear brake disc DK018 for KTM 350XC-F (2011-2021)
02 · Data & docs

The facts.

Technical data
BrandAccossato
TypeFixed brake disc, steel
Part numberDK018
PositionRear
Outer diameter220 mm
Inner diameter110 mm
Thickness4 mm
Wear limitMinimum thickness marked on the disc
FitmentKTM 350XC-F (2011–2021)
Road approvalNone documented, track use only
DescriptionThe whole story▼

A squeal from the rear brake after a muddy section is one of the most familiar noises in cross-country racing. On a KTM 350 XC-F it usually means grit between pad and disc, and although it often goes away by itself, it is worth understanding. The rear disc Accossato lists for the 350 XC-F from 2011 to 2021 is the DK018, a one-piece fixed disc, steel-made by the supplier's description, 220 mm across with a 4 mm friction ring.

Key Features

  • Rear disc for the KTM 350 XC-F, 2011 to 2021
  • Fixed, one-piece disc from the off-road range
  • Steel-made according to the supplier
  • 220 mm outside, 110 mm bore, 4 mm thick
  • Accossato lists it as interchangeable with the original
  • Minimum working thickness printed on the disc
  • Supplied as a single disc; no German ABE documented

Construction and Material Quality

Hub mounting and friction surface are formed from one piece in Accossato's DK018, a fixed rear disc without any separate parts. The supplier calls it steel-made and gives its bore as 110 mm. Accossato, based in Villastellone near Turin, lists it as a direct exchange for the original. Its disc knowledge comes, the company says, from road racing, Superbike included, and from Moto2 and Moto3, and the minimum working thickness is printed on every disc it makes.

Squeal After the Mud Hole

Mud carries sand and small stones, and when it dries on the rear brake of the 350 XC-F the grit sits between pad and disc. A squeal while braking is the result, sometimes a grinding sound. Usually a few firm applications clear it. If the noise stays, stop and look: a stone wedged in the caliper can score the disc badly in a short time. After the race, clean the brake with water and a soft brush, take the pads out if necessary and rinse the caliper. Check the pads for chipped edges and glazing, and lightly chamfer their leading edges if the noise continues. A disc with deep grooves from trapped stones should be measured, and replaced if it is near the printed minimum. Never spray lubricant on a squealing brake: it will silence it by taking away its grip.

Fitment and Compatibility

On a KTM 350 XC-F from 2011 to 2021, the DK018 takes over from the original rear disc. For the front, Accossato lists the DK259 for the same years and the DK017 for 2012 to 2017; the two front discs differ in size, so measure before choosing one.

Road Approval

The DK018 has no German ABE and no documented type approval. It is sold for competition, the use the 350 XC-F was designed for.

Scope of Delivery

A single DK018 rear disc; pads and bolts are not included.

Specifications

  • Type: Fixed brake disc, steel
  • Part number: DK018
  • Position: Rear
  • Outer diameter: 220 mm
  • Inner diameter: 110 mm
  • Thickness: 4 mm
  • Replacement: Interchangeable with the original equipment disc
  • Wear limit: Minimum thickness marked on the disc
  • Fitment: KTM 350XC-F (2011–2021)
  • Road approval: None documented, track use only
What's includedEverything in the box▼
  • 1x Accossato brake disc
FitmentWhich bikes this fits▼
  • KTM 350XC-F (2011–2021)
  • GasGas EC 125 (1998–2015)
  • GasGas EC 250 (2021–2022)
  • GasGas EC 300 (2013–2024)
  • GasGas MC 450F (2021–2024)
  • Husqvarna FC 250 (2014–2024)
  • Husqvarna FC 350 (2014–2024)
  • Husqvarna FC 450 (2014–2024)
  • Husqvarna FE 250 (2014–2024)
  • Husqvarna FE 350 (2014–2024)
  • Husqvarna FE 450 (2014–2022)
  • Husqvarna FE 501 (2014–2024)
  • Husqvarna FS 450 (2015–2024)
  • Husqvarna FX 450 (2017–2021)
  • Husqvarna TC 125 (2014–2021)
  • Husqvarna TC 250 (2014–2022)
  • Husqvarna TE 250 (2014–2018)
  • Husqvarna TE 300 (2014–2026)
  • Husqvarna TX 125 (2017–2019)
  • KTM 125EXC (1990–2017)
  • KTM 125SX (1993–2026)
  • KTM 150SX (2009–2022)
  • KTM 250EXC SIX DAYS (2001–2017)
  • KTM 250EXC-F SIX DAYS (2007–2024)
  • KTM 250SX (1993–2026)
  • KTM 250SX-F (2005–2026)
  • KTM 250XC (2006–2026)
  • KTM 250XC-F (2011–2026)
  • KTM 250XC-W (2008–2026)
  • KTM 300EXC (1994–2026)
  • KTM 300XC (2006–2026)
  • KTM 350EXC-F (2012–2026)
  • KTM 350EXC-F SIX DAYS (2012–2024)
  • KTM 350SX-F (2010–2026)
  • KTM 450 SMR (2004–2022, 2024–2026)
  • KTM 450EXC-F (2003–2026)
  • KTM 450EXC-F SIX DAYS (2003–2024)
  • KTM 450XC-F (2006–2026)
  • KTM 500EXC-F (2012–2026)
  • KTM 500EXC-F SIX DAYS (2012–2024)
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08 · Paddock

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