ATHENA Cylinder Base Gasket for KTM EXC, EXCF, SXF, XCW 400, 450, 500, 530 and HUSABERG FE, FS, FX 390, 450, 570 2007-2016

ATHENA offers this cylinder base gasket for KTM EXC, EXCF, SXF, XCW 400, 450, 500, 530 and HUSABERG FE, FS, FX 390, 450, 570 2007-2016. The base gasket sits under the cylinder, on the crankcase. Crushed when tightened, it cannot be reused: replace it every time the cylinder comes off.

Why does the thickness matter?

The benefits:

• The OE thickness keeps the cylinder height intended by the manufacturer.
• Another thickness lets you correct piston-to-head clearance after machining or adjust the port timing of a 2-stroke.
• A new gasket keeps the bottom end sealed against oil and gases.

Why choose ATHENA?

Athena, founded in 1973 by Giovanni Mancassola near Vicenza and based in Alonte (Italy), designs gaskets, pistons and cylinder kits; it supplies original equipment to manufacturers such as KTM, Ducati, Fantic and Triumph.

When should you replace the base gasket on your KTM EXCF 450?

Every time the cylinder comes off: piston change, top-end rebuild or cylinder inspection. Oil or mixture seeping at the base of the cylinder also points to a tired gasket.

No manufacturer figure in hours for this model. Cross-Mania guideline: compression check every 30 h of hard use and every 60 h of leisure riding.

Specifications and fitting tips

• Manufacturer part numbers: S410270006102 (0.10 mm), S410270006098 (0.20 mm), S410270006099 (0.30 mm), S410270006100 (0.50 mm), S410270006101 (0.60 mm)

Choose the thickness from the list. "OE" is the factory thickness; another thickness is used to set the cylinder height after a rebuild (piston-to-head clearance, port timing on a 2-stroke).

Cross-Mania tip: Choose the OE thickness if the cylinder and head have not been machined; if in doubt, measure the squish with solder wire before final assembly.

Spare parts and items to plan

• Top-end gasket kit : ATHENA · CENTAURO
• Piston : see the selection
• Piston rings : WOSSNER RIK95.00 · WOSSNER 890XSY-3
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HUSABERG FE 390 2013
HUSABERG FE 390 2012
HUSABERG FE 390 2011
HUSABERG FE 390 2010
HUSABERG FE 390 2009
HUSABERG FE 390 2008
HUSABERG FE 390 2007
HUSABERG FE 450 2013
HUSABERG FE 450 2012
HUSABERG FE 450 2011
HUSABERG FE 450 2010
HUSABERG FE 450 2009
HUSABERG FE 450 2008
HUSABERG FE 450 2007
HUSABERG FE 570 2013
HUSABERG FE 570 2012
HUSABERG FE 570 2011
HUSABERG FE 570 2010
HUSABERG FE 570 2009
HUSABERG FE 570 2008
HUSABERG FE 570 2007
HUSABERG FS 570 2013
HUSABERG FS 570 2012
HUSABERG FS 570 2011
HUSABERG FS 570 2010
HUSABERG FS 570 2009
HUSABERG FS 570 2008
HUSABERG FS 570 2007
HUSABERG FX 450 2013
HUSABERG FX 450 2012
HUSABERG FX 450 2011
HUSABERG FX 450 2010
HUSABERG FX 450 2009
HUSABERG FX 450 2008
HUSABERG FX 450 2007
KTM EXC 400 2013
KTM EXC 400 2012
KTM EXC 400 2011
KTM EXC 400 2010
KTM EXC 400 2009
KTM EXC 400 2008
KTM EXC 400 2007
KTM EXC 450 2013
KTM EXC 450 2012
KTM EXC 450 2011
KTM EXC 450 2010
KTM EXC 450 2009
KTM EXC 450 2008
KTM EXC 450 2007
KTM EXC 500 2016
KTM EXC 500 2015
KTM EXC 500 2014
KTM EXC 530 2013
KTM EXC 530 2012
KTM EXC 530 2011
KTM EXC 530 2010
KTM EXC 530 2009
KTM EXC 530 2008
KTM EXC 530 2007
KTM EXCF 450 2016
KTM EXCF 450 2015
KTM EXCF 450 2014
KTM EXCF 450 2013
KTM EXCF 450 2012
KTM EXCF 450 2011
KTM EXCF 450 2010
KTM EXCF 450 2009
KTM EXCF 450 2008
KTM EXCF 450 2007
KTM SXF 450 2015
KTM SXF 450 2014
KTM SXF 450 2013
KTM XCW 400 2013
KTM XCW 400 2012
KTM XCW 400 2011
KTM XCW 400 2010
KTM XCW 400 2009
KTM XCW 400 2008
KTM XCW 400 2007
KTM XCW 450 2013
KTM XCW 450 2012
KTM XCW 450 2011
KTM XCW 450 2010
KTM XCW 450 2009
KTM XCW 450 2008
KTM XCW 450 2007
KTM XCW 530 2013
KTM XCW 530 2012
KTM XCW 530 2011
KTM XCW 530 2010
KTM XCW 530 2009
KTM XCW 530 2008
KTM XCW 530 2007