Juice Lubes Mineral Oil Brake Fluid - Review

Introduction

Juice Lubes Mineral Oil Brake Fluid (130 ml) is a high-performance, world-cup-proven mineral oil designed specifically for mountain bike hydraulic brake systems that require mineral oil—not DOT fluids. Ideal for riders seeking brake fluid with a super-high boiling point to keep brakes sharp and fade-free during long, demanding descents. It’s perfect for downhill and enduro cyclists who want consistent lever feel on alpine runs.

Design & Build Quality

Housed in a compact, recyclable 130-ml bottle, this Brake Fluid is clearly labelled and easy to handle for DIY bleeding or professional servicing. The packaging underscores its eco-friendly aspect. The formulation is tailored—stable from –20 °C to +80 °C—delivering a reliable performance across a broad temperature range.

Performance & Features

• Dry boiling point: an ultra-high 290 °C ensures fade-resistant braking even after intense use.
• Viscosity: 10 cSt @ 40 °C for smooth, predictable lever feel.
• Operation range: –20 to +80 °C keeps performance consistent in diverse conditions.
• Stable through wide temperatures—no “brake fade” or “pumping.”

Tested on demanding tracks such as World Cup downhill courses and alpine laps in Morzine, it delivers “beautiful brakes from the chair lift to the bar.”

Pros, Cons & Verdict

Pros

• Ultra-high boiling point ensures reliable, fade-free braking on long descents.
• Stable viscosity and consistent lever feel across temperature extremes.
• Proven performance in professional racing conditions.
• Eco-friendly, recyclable packaging.

Cons

• Only compatible with mineral-oil brake systems—cannot be used with DOT systems.
• Performance depends on well-maintained components—ineffective on poorly bled brakes, worn pads, or damaged rotors.

Verdict

Juice Lubes Mineral Oil Brake Fluid (130 ml) is a top-tier, mountain bike–specific brake fluid that delivers fade-free, responsive braking under the most demanding conditions. If you ride aggressive terrain and your system uses mineral oil, this should be in your toolkit. Just ensure your braking components are in good condition, and you'll be rewarded with consistent, confident stopping power.