PROX offers you this original-type piston designed for 250cc Gas Gas engines. With a diameter of 66.4 mm and a bi-segment design, it offers a good balance between performance, torque and reliability.

Of superior quality, it perfectly replaces the original piston without modification. Its design allows for a slightly higher compression ratio (38), which improves engine torque, especially at low and mid-range speeds.

This model features two lubrication points to optimize lubrication and ensure longer cylinder and piston life. The skirt has also been reworked to promote gas flow and improve overall engine efficiency.

This piston is therefore ideal for optimizing the top end of the engine while maintaining excellent reliability.

Available sizes:

A: 66.33 mm

B: 66.34 mm

C: 66.35 mm

Allow about 15 days for this type of piston.

Fits on:

FANTASTIC TR250ES CABALLERO 2014

FANTASTIC TR250ES CABALLERO 2013

FANTASTIC TR250ES 2015

GAS GAS SM 250 2005

GAS GAS SM 250 2004

GAS GAS SM 250 2003

GAS GAS SM 250 2002

GAS GAS MC 250 2009

GAS GAS MC 250 2008

GAS GAS MC 250 2007

GAS GAS MC 250 2006

GAS GAS MC 250 2005

GAS GAS MC 250 2004

GAS GAS MC 250 2003

GAS GAS MC 250 2002

GAS GAS MC 250 2001

GAS GAS MC 250 2000

GAS GAS MC 250 1999

GAS GAS MC 250 1998

GAS GAS EC 250 ENDURO GP 2018

GAS GAS EC 250 RACING 2018

GAS GAS EC 250 RACING 2017

GAS GAS EC 250 RACING 2016

GAS GAS EC 250 RACING 2015

GAS GAS EC 250 RACING 2014

GAS GAS EC 250 RACING 2013

GAS GAS EC 250 RACING 2012

GAS GAS EC 250 RACING 2011

GAS GAS EC 250 RACING 2010

GAS GAS EC 250 RACING 2009

GAS GAS EC 250 RACING 2008

GAZ GAZ SIX DAYS OF RACING EC 250 2018

GAZ GAZ EC 250 REPLICA GUILLAUME 2012

GAZ GAZ EC 250 REPLICA 2014

GAZ GAZ EC 250 REPLICA 2013

GAZ GAZ EC 250 SIX JOURS 2011

GAZ GAZ EC 250 SIX JOURS 2010

GAS GAS EC 250 SIX DAYS 2009

GAS EC 250 REPLICA CERVANTES 2011

GAS GAS EC 250 2001

GAS GAS EC 250 2014

NATURAL GAS EC 250 2013

GAS GAS EC 250 2012

GAS GAS EC 250 2011

GAS GAS EC 250 2010

GAS GAS EC 250 2009

GAS GAS EC 250 2008

GAS GAS EC 250 2007

GAS GAS EC 250 2006

GAS GAS EC 250 2005

GAS GAS EC 250 2004

GAS EC 250 2003

GAS GAS EC 250 2002

GAS GAS EC 250 E 2014

GAS GAS EC 250 E 2013

GAS GAS EC 250 E 2012

GAS GAS EC 250 E 2011

GAS GAS EC 250 E RACING 2016

GAS GAS EC 250 E RACING 2015

GAS GAS EC 250 E RACING 2014

GAS GAS EC 250 E RACING 2017

GAZ GAZ EC 250 ENDURO GP 2019

GAS GAS SIX DAYS RACING EC 250 2020

GAZ GAZ SIX JOURS DE COURSE EC 250 2019

GAS GAS EC 250 2019

GAS GAS EC 250 2018

GAS GAS EC 250 2017

GAS GAS EC 250 2015