Motul RBF660 Racing Brake Fluid - 500ml Harley & Indian V-Twin
About Motul
Motul has produced lubricants since 1853 and pioneered ester-based synthetic motor oil. Its V-twin range is formulated for the high oil temperatures air-cooled engines routinely see in traffic.
Motul RBF660 is a 100% synthetic racing brake fluid engineered for V-twin motorcycles, delivering one of the highest dry boiling points available. This fluid is designed to resist fade under the most aggressive braking conditions. It's an ideal choice for riders pushing their bikes on the track or demanding maximum performance on the street.
Why riders pick this
- 100% synthetic for extreme heat resistance
- Highest dry boiling point for fade prevention
- Consistent brake feel under aggressive use
- Compatible with DOT 3 and DOT 4 systems
- Ideal for racing and high-performance V-twins
For riders who demand absolute maximum braking performance from their Harley or Indian V-twin, Motul RBF660 Racing Brake Fluid is the answer. This fluid is formulated to withstand extreme temperatures generated during heavy, sustained braking, virtually eliminating brake fade. Whether you're competing in King of the Baggers, hitting the drag strip, or simply want the most confidence-inspiring brake feel on the street, RBF660 provides a critical edge. Its advanced synthetic composition ensures consistent lever feel and powerful stopping force, even when other fluids would boil.
Uncompromising Braking Performance
- 100% synthetic formulation for ultimate thermal stability
- Extremely high dry boiling point resists fade under severe use
- High wet boiling point maintains performance over time
- Compatible with DOT 3 and DOT 4 brake systems
- Designed for racing and high-performance V-twin applications
The Edge in Braking Confidence
Upgrading to Motul RBF660 means your brake system will perform consistently, lap after lap, or mile after mile of hard riding. While it mixes safely with DOT 3 and DOT 4 systems, a complete flush is recommended to fully realize its performance benefits. It is crucial to note that RBF660 is not compatible with DOT 5 (silicone-based) fluids. This racing-grade fluid is for the serious V-twin enthusiast who won't compromise on stopping power.
Specifications
- Brand: Motul
- Manufacturer Part #: 101667
- UPC: 3374650020501
- Bottle Size: 500ml
- Weight: 3.31 lbs
- Dimensions: 3.31 in L × 2.2 in W × 2.2 in H
Common questions
Can I mix RBF660 with my existing DOT 4 fluid?
Yes, RBF660 is fully compatible with DOT 3 and DOT 4 systems. However, a complete system flush is recommended for optimal racing-grade performance.
What makes this racing-grade?
The exceptionally high dry boiling point is engineered to resist brake fade under hard braking and track use conditions, where stock fluid can boil and compromise performance.
How much fluid does one 500ml bottle cover?
One 500ml bottle typically contains enough fluid to fill or top off a single motorcycle brake system, though specific capacity depends on your bike's reservoir size.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Motul |
| TYPE | Chemicals |
| SKU | 82-2155 |
| WEIGHT | 3.31 lb |
