Name: Piston Kit 01-08 KTM50 Sx, Wossner 8225DB Forged MX
Brand: Wossner
SKU: 56-W803.B.WO

Piston Kit 01-08 KTM50 Sx, Wossner 8225DB Forged MX

Wossner
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Description

This Wossner forged piston kit with a 39.51mm bore (+0.01mm oversize) is designed for KTM SX50 models. While the bore specification aligns with models from 2001 to 2008, the product description indicates a fitment for 2009 to 2018. Engineered for two-stroke performance, this German-made piston ensures excellent thermal transfer and structural reliability through its elliptical design and high-quality materials.

Features

Forged construction delivers superior durability and resistance to mechanical stress
Optimised heat transfer from the combustion chamber to the cylinder walls
Elliptical design ensures even load distribution, reducing localised pressure and the risk of piston collapse
Manufactured in Germany

Specifications

Bore: 39.51mm
Actual Bore: 39.46mm
Engine Displacement: 50 cm³
Stroke: 40.00mm
Clearance: 0.04mm
Compression Ratio: 2-stroke (Wossner and OEM)
Compression Height: 21.60mm
Lock Part Number: CW12
Pin Part Number: WP101
Ring Set Part Number: RSB3950

Cross-Reference OEM Part Numbers

Not specified

Vehicle Fitments

2001 KTM SX50
2002 KTM SX50
2003 KTM SX50
2004 KTM SX50
2005 KTM SX50
2006 KTM SX50
2007 KTM SX50
2008 KTM SX50
2009 KTM SX50
2010 KTM SX50
2011 KTM SX50
2012 KTM SX50
2013 KTM SX50
2014 KTM SX50
2015 KTM SX50
2016 KTM SX50
2017 KTM SX50
2018 KTM SX50

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
KTM	SX 50	2001-2008
KTM	JR ADVENTURE 50	2003
KTM	MINI ADVENTURE 50	2002-2008
KTM	ADVENTURE 50	2002-2008
KTM	SXR ADVENTURE 50	2003
KTM	SXR ADVENTURE 50	2006-2007
KTM	SXR ADVENTURE 50	2004-2005
KTM	SX PRO SR 50	2001-2005
KTM	SX PRO JR 50	2001-2005
KTM	SX MINI LC 50	2008
KTM	SX JR 50	2008
KTM	SX JR 50	2006-2007
KTM	SX 50	2008
KTM	SX 50	2006-2007
KTM	SR ADVENTURE 50	2003
KTM	SR ADVENTURE 50	2002
KTM	SR ADVENTURE 50	2006-2007
KTM	SR ADVENTURE 50	2004-2005
KTM	MINI ADVENTURE GS 50	2002
KTM	MINI ADVENTURE 50	2003
KTM	MINI ADVENTURE 50	2002
KTM	MINI ADVENTURE 50	2006-2007
KTM	MINI ADVENTURE 50	2004-2005
KTM	JR ADVENTURE 50	2002
BETA	RK6 50	1997-2002
KTM	SX MINI LC 50	2001-2008
BETA	SUPERMOTARD 50	1996-1999
BETA	ST 50	1996-1999

Piston Kit 01-08 KTM50 Sx, Wossner 8225DB Forged MX

Wossner
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This Wossner forged piston kit with a 39.51mm bore (+0.01mm oversize) is designed for KTM SX50 models. While the bore... Read more

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SKU: 56-W803.B.WO

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Description

This Wossner forged piston kit with a 39.51mm bore (+0.01mm oversize) is designed for KTM SX50 models. While the bore specification aligns with models from 2001 to 2008, the product description indicates a fitment for 2009 to 2018. Engineered for two-stroke performance, this German-made piston ensures excellent thermal transfer and structural reliability through its elliptical design and high-quality materials.

Features

Forged construction delivers superior durability and resistance to mechanical stress
Optimised heat transfer from the combustion chamber to the cylinder walls
Elliptical design ensures even load distribution, reducing localised pressure and the risk of piston collapse
Manufactured in Germany

Specifications

Bore: 39.51mm
Actual Bore: 39.46mm
Engine Displacement: 50 cm³
Stroke: 40.00mm
Clearance: 0.04mm
Compression Ratio: 2-stroke (Wossner and OEM)
Compression Height: 21.60mm
Lock Part Number: CW12
Pin Part Number: WP101
Ring Set Part Number: RSB3950

Cross-Reference OEM Part Numbers

Not specified

Vehicle Fitments

2001 KTM SX50
2002 KTM SX50
2003 KTM SX50
2004 KTM SX50
2005 KTM SX50
2006 KTM SX50
2007 KTM SX50
2008 KTM SX50
2009 KTM SX50
2010 KTM SX50
2011 KTM SX50
2012 KTM SX50
2013 KTM SX50
2014 KTM SX50
2015 KTM SX50
2016 KTM SX50
2017 KTM SX50
2018 KTM SX50

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
KTM	SX 50	2001-2008
KTM	JR ADVENTURE 50	2003
KTM	MINI ADVENTURE 50	2002-2008
KTM	ADVENTURE 50	2002-2008
KTM	SXR ADVENTURE 50	2003
KTM	SXR ADVENTURE 50	2006-2007
KTM	SXR ADVENTURE 50	2004-2005
KTM	SX PRO SR 50	2001-2005
KTM	SX PRO JR 50	2001-2005
KTM	SX MINI LC 50	2008
KTM	SX JR 50	2008
KTM	SX JR 50	2006-2007
KTM	SX 50	2008
KTM	SX 50	2006-2007
KTM	SR ADVENTURE 50	2003
KTM	SR ADVENTURE 50	2002
KTM	SR ADVENTURE 50	2006-2007
KTM	SR ADVENTURE 50	2004-2005
KTM	MINI ADVENTURE GS 50	2002
KTM	MINI ADVENTURE 50	2003
KTM	MINI ADVENTURE 50	2002
KTM	MINI ADVENTURE 50	2006-2007
KTM	MINI ADVENTURE 50	2004-2005
KTM	JR ADVENTURE 50	2002
BETA	RK6 50	1997-2002
KTM	SX MINI LC 50	2001-2008
BETA	SUPERMOTARD 50	1996-1999
BETA	ST 50	1996-1999

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.