Accossato off-road floating swingarm chain slider GSM1 for KTM 250EXC-F, black colour⟲ 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandAccossato
TypeOff-road floating swingarm chain slider
Part numberGSM1
ColoursBlack, orange, blue
UseOff-road (enduro, motocross)
FitmentKTM 250EXC-F (2012–2020)
CheckCompare with the application list before ordering
Road approvalNone documented, off-road and competition use
DescriptionThe whole story▼

Two riders sharing a garage often end up with a 250 EXC-F standing next to one of the many other KTM or Husqvarna models built on the same swingarm, and parts bought for one tend to get borrowed for the other without much thought, since several of Accossato's chain parts fit the whole family. The GSM1 is one of those shared parts, a floating swingarm slider listed for the 250 EXC-F between 2012 and 2020 and mounted so it can move with the chain rather than holding it to one fixed line.

Key Features

  • Floating swingarm chain slider for the KTM 250 EXC-F, 2012 to 2020
  • Accossato code GSM1, mounted so it can follow the chain's movement
  • Orange, blue or black
  • Also listed for a wide run of other KTM two-stroke and four-stroke off-road models
  • Can be combined with Accossato's GCM1 chain guide and either axle block for this bike
  • No German ABE on file; built for off-road and competition use

Construction and Material Quality

Unlike a slider bolted down at a single point, the GSM1 sits in a mount that lets the whole piece track the chain's own movement rather than forcing the chain to follow one rigid line. Accossato keeps to the same three colours across its range for this bike, orange, blue and black, so a part bought separately still matches whatever else is already fitted. A mount that has developed noticeable play beyond what feels normal is worth a closer look at the same time the chain itself gets checked.

Two Bikes, One Shelf of Spares

A household running a 250 EXC-F alongside a sibling model from the same platform, whether that is a smaller two-stroke for a less experienced rider or a larger four-stroke for faster trails, can keep a single set of chain parts in reserve rather than two separate sets gathering dust for bikes that barely differ underneath. The GSM1 is exactly the kind of part that makes that practical, since Accossato lists it against so many models sharing this swingarm shape. Buying one spare that fits either bike, rather than guessing which one will need it first, is a small bit of planning that pays off the first time a slider actually wears through.

Fitment and Compatibility

Accossato's list keeps the 250 EXC-F on the GSM1 for the entire 2012-to-2020 run, matching the span given for the chain guide on the same bike. That same part reappears against a long string of other KTM two-stroke and four-stroke off-road machines sharing this swingarm, so the household-sharing scenario above is more the rule than the exception. The GCM1 guide and either axle block round out the rest of the chain-care parts Accossato lists for this particular bike.

Road Approval

Accossato lists no German ABE for the GSM1, so the part is intended for off-road and competition riding rather than public roads.

Scope of Delivery

Supplied as one floating swingarm slider in the colour chosen at checkout.

Specifications

  • Type: Off-road floating swingarm chain slider
  • Part number: GSM1
  • Colours: Black, orange, blue
  • Use: Off-road (enduro, motocross)
  • Fitment: KTM 250EXC-F (2012–2020)
  • Check: Compare with the application list before ordering
  • Road approval: None documented, off-road and competition use
What's includedEverything in the box▼
  • 1x Accossato floating chain slider
FitmentWhich bikes this fits▼
  • KTM 250EXC-F (2012–2020)
  • KTM 125EXC (2012–2016)
  • KTM 125SX (2011–2015)
  • KTM 150SX (2010–2015)
  • KTM 200EXC (2012–2016)
  • KTM 250SX (2011–2016)
  • KTM 250SX-F (2011–2015)
  • KTM 300EXC (2012–2020)
  • KTM 350EXC-F (2012–2020)
  • KTM 350SX-F (2011–2015)
  • KTM 450EXC-F (2012–2020)
  • KTM 500EXC-F (2012–2020)
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