All Balls Racing Calliper Piston Kit (18-9021)

Precision machined from high grade 304 Stainless Steel.

Features:

• Stainless steel reduces thermal conductivity by up to 93% compared to aluminium.
• Plastic composite pistons are prone to damage and become brittle with age.
• OEM chrome-plated steel and aluminum pistons are prone to corrosion.
• Eliminates failure-prone ceramic inserts found on some KTM models.
• Each kit contains piston or pistons to rebuild one caliper.