Brake System O-Ring 8x1mm for KTM 50/65/85 SX & Husqvarna TC 2002-2026 - 0770080019

This genuine OEM O-ring (8.00x1.00 mm) is a critical sealing component designed for Formula brake systems. It ensures a leak-free seal within the front and rear brake master cylinders and calipers, maintaining consistent hydraulic pressure for safe operation.

This part is compatible with a wide range of small-displacement motocross and electric models. It fits KTM 50 SX, 65 SX, 85 SX, and 105 SX models from 2002 to 2026, as well as the Freeride 250, 350, and E-XC series. It is also used on Husqvarna TC 50, TC 65, TC 85, and EE 5 models, along with GasGas MC 50, MC 65, MC 85, and MC-E 5 bikes.

Manufactured to precise factory specifications, this O-ring is made from high-quality elastomer material resistant to brake fluid and heat. Replacing worn seals is essential to prevent fluid loss and a spongy brake lever feel during intense riding conditions.

When performing a brake system rebuild, always lubricate the O-ring with fresh brake fluid before installation to prevent tearing. Regular inspection of your braking system helps identify leaks early, ensuring your motorcycle remains race-ready and safe.

Check compatibility list below to see if this part fits your motorcycle model.