Wossner 2025

KTM 4-STROKE

MODEL

YEARS

PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO

PISTON SIZE

OVERSIZE

RING SET

500 EXC-F

2020 - 2024

4100DA

94.94

STD

RIK95.00/2

500 XCF-W

2020 - 2022

4100DB

94.95

+0.01

RIK95.00/2

14.0:1

12.75:1

500 EXC-F SIX DAYS

2021 - 2024

4100DC

94.96

+0.02

RIK95.00/2

500 XW-F

2024

SX-F 505

2008

8705DA

99.95

STD

1000ADS-2

XC-F 505

2009

8705DB

99.96

+0.01

1000ADS-2

12.5:1

12.5:1

8705DC

99.97

+0.02

1000ADS-2

SX-F 505

2008

8725DA

99.95

STD

1000ADS-2

XC-F 505

2009

8725DB

99.96

+0.01

1000ADS-2

13.5:1

12.5:1

8725DC

99.97

+0.02

1000ADS-2

520 EXC / SX

2000 - 2002

8547DA

94.95

STD

RIK95.00/2

525 EXC FACTORY RACING

2007

8547DB

94.96

+0.01

RIK95.00/2

525 EXC RACING

2003 - 2007

8547DC

94.97

+0.02

RIK95.00/2

525 EXC-G RACING

2003 - 2006

8547D200

RIK97.00/2

11.0:1

11.0:1

525 MXC-G RACING

2003 - 2005

525 SMR

2004 - 2005

525 SX RACING

2003 - 2007

525 SX SUPERMOTO

2005

525 XC-G RACING

2006

206

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