Maintain the sound and thermal performance of your machine with this 250 mm rockwool refill kit for round silencers.

Excellent resistance to the high temperatures and stresses of high-performance 4-stroke engines.

Improves durability, reduces engine wear and includes a complete ready-to-fit assembly with piston, rings, pin and circlips.

Maintain the sound and thermal performance of your silencer with this high-quality 450 mm rockwool refill kit.

Offers excellent resistance to heavy mechanical loads thanks to a high-performance design adapted to 2-stroke off-road engines.

Maintains optimum compression, improves engine performance and ensures longer service life in intensive use.

Improves compression, engine responsiveness and reliability while reducing friction and wear in intensive motocross or enduro use.

Improves compression, engine responsiveness and reliability while maintaining consistent performance in intensive motocross or enduro use.

Offers excellent resistance to heavy mechanical loads thanks to a high-performance design adapted to modern 2-stroke engines.

Offers excellent resistance to heavy mechanical loads thanks to a high-performance design adapted to modern 2-stroke engines.

Improves compression, engine responsiveness and reliability while reducing friction and wear in intensive motocross or enduro use.

Improves compression, engine responsiveness and reliability while reducing friction and wear in intensive use or competition.