Red Line RL-700 DOT 4 Racing Brake Fluid - SYN Brake Fluid 500ml 6/Case

Red Line RL-700 is a DOT 4 synthetic racing brake fluid formulated for V-twin motorcycles, delivering high-temperature stability and consistent braking performance under extreme conditions. Exceeds FMVSS No. 116 DOT 4 specification with a dry boiling point of 635°F.

Features

• DOT 4 synthetic formula rated to 635°F dry boiling point
• Wet boiling point of 401°F — resists fade under sustained braking
• Do not mix with other brake fluids to preserve performance
• Conforms to and exceeds U.S. FMVSS No. 116 DOT 4

Specifications

• Brand: Red Line
• Manufacturer Part #: 90405
• UPC: 83522904056
• Product Type: DOT 4 Synthetic Brake Fluid
• Size: 500ml
• Quantity: 6 per case
• Dry Boiling Point: 635°F (335°C)
• Wet Boiling Point: 401°F (205°C)
• Weight: 1.33 lbs
• Dimensions: 6.87 in L × 3.7 in W × 2.2 in H

Fitment

Fits all V-twin motorcycles, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Can I mix Red Line RL-700 with my current brake fluid?

No — do not mix with other brake fluids. Flushing the system is required to avoid compromising performance.

What makes this different from standard DOT 4 fluid?

Red Line RL-700 is a synthetic formula with higher boiling points (635°F dry, 401°F wet) for extreme racing and high-temperature conditions.

Is this street-legal?

Yes — RL-700 exceeds DOT 4 specification FMVSS No. 116, making it street-legal on all V-twin motorcycles.

How often should I change it?

Brake fluid absorbs moisture over time. Red Line recommends a full system flush every 1–2 years depending on riding conditions and climate.

Why is this sold in a 6-pack?

Case quantity is intended for shops, fleets, and riders who service multiple bikes or want spares for future brake maintenance.