PROX piston ring set Ø 54.00 mm for KTM EXC 125, SX 125, HUSQVARNA TC 125, TE 125, TM RACING EN 125

Check before ordering

• Diameter: Ø 54.00 mm

PROX offers this piston ring set for KTM EXC 125, SX 125, SXS 125, XC 125, XCW 125, HUSQVARNA TC 125, TE 125, TX 125, TM RACING EN 125, EN 125 FI and GAS GAS MC 125, TXT 125, TXT 125 GP 2000-2025. Rings are thin steel bands sitting in the piston grooves. They press against the cylinder wall to hold compression and scrape oil.

Why replace the rings?

The benefits:

• Regain compression and power.
• Reduce oil consumption and smoke.
• A cheap fix when piston and cylinder are still within spec.

Why choose PROX?

ProX has its pistons made in Japan and the USA, with Japanese rings (Riken, TP or NPR) and tolerances at least equal to OEM; most of its four-stroke pistons are forged.

When should you replace the piston rings?

Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

Recommended hours for a top-end rebuild (manufacturer recommendation for the KTM SX, Husqvarna TC 125-300 2017-2022):

• Racing: every 20 h.
• Leisure: no KTM figure; Cross-Mania guideline: compression check at around 40 h.
• Riding in sand: every 10 h.
• KTM SX, Husqvarna TC, GASGAS MC two-strokes since 2023: racing: every 45 h.

Specifications and fitting tips

• Manufacturer part number: 02.6220

Cross-Mania tip: Check the ring end gap in the cylinder before fitting and respect the fitting direction (mark facing up).

Also needed with this part

• Piston : VERTEX 24419A · VERTEX 24243A
• Top-end gasket kit : CENTAURO · PROX
• 2-stroke oil : LIQUI MOLY 1 L · LIQUI MOLY 4 L

Compatibility

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

Fits:
GAS GAS MC 125 2025
GAS GAS MC 125 2024
GAS GAS MC 125 2023
GAS GAS MC 125 2022
GAS GAS MC 125 2021
GAS GAS TXT 125 2023
GAS GAS TXT 125 2022
GAS GAS TXT 125 GP 2022
HUSABERG TE 125 2014
HUSABERG TE 125 2013
HUSABERG TE 125 2012
HUSQVARNA TC 125 2025
HUSQVARNA TC 125 2024
HUSQVARNA TC 125 2023
HUSQVARNA TC 125 2022
HUSQVARNA TC 125 2021
HUSQVARNA TC 125 2020
HUSQVARNA TC 125 2019
HUSQVARNA TC 125 2018
HUSQVARNA TC 125 2017
HUSQVARNA TC 125 2016
HUSQVARNA TC 125 2015
HUSQVARNA TC 125 2014
HUSQVARNA TE 125 2016
HUSQVARNA TE 125 2015
HUSQVARNA TE 125 2014
HUSQVARNA TX 125 2019
HUSQVARNA TX 125 2018
HUSQVARNA TX 125 2017
KTM EXC 125 2017
KTM EXC 125 2016
KTM EXC 125 2015
KTM EXC 125 2014
KTM EXC 125 2013
KTM EXC 125 2012
KTM EXC 125 2011
KTM EXC 125 2010
KTM EXC 125 2009
KTM EXC 125 2008
KTM EXC 125 2007
KTM EXC 125 2006
KTM EXC 125 2005
KTM EXC 125 2004
KTM EXC 125 2003
KTM EXC 125 2002
KTM EXC 125 2001
KTM SX 125 2025
KTM SX 125 2024
KTM SX 125 2023
KTM SX 125 2022
KTM SX 125 2021
KTM SX 125 2020
KTM SX 125 2019
KTM SX 125 2018
KTM SX 125 2017
KTM SX 125 2016
KTM SX 125 2015
KTM SX 125 2014
KTM SX 125 2013
KTM SX 125 2012
KTM SX 125 2011
KTM SX 125 2010
KTM SX 125 2009
KTM SX 125 2008
KTM SX 125 2007
KTM SX 125 2006
KTM SX 125 2005
KTM SX 125 2004
KTM SX 125 2003
KTM SX 125 2002
KTM SX 125 2001
KTM SXS 125 2008
KTM SXS 125 2007
KTM SXS 125 2006
KTM SXS 125 2005
KTM SXS 125 2004
KTM SXS 125 2003
KTM SXS 125 2002
KTM SXS 125 2001
KTM SXS 125 2000
KTM XC 125 2023
KTM XCW 125 2023
KTM XCW 125 2022
KTM XCW 125 2021
KTM XCW 125 2020
KTM XCW 125 2019
KTM XCW 125 2018
KTM XCW 125 2017
TM RACING EN 125 2019
TM RACING EN 125 2018
TM RACING EN 125 2017
TM RACING EN 125 2016
TM RACING EN 125 2015
TM RACING EN 125 FI 2024
TM RACING EN 125 FI 2023
TM RACING EN 125 FI 2022
TM RACING EN 125 FI 2021
TM RACING EN 125 FI 2020