05/28/2026
Your brake fluid might be one of the most overlooked areas of your motorcycle.
Jules from Service at Trev Deeley Motorcycles breaks down why DOT 4 brake fluid is critical to your bike’s braking system, how moisture and contamination can affect performance, and why regular maintenance matters more than most riders realize.
Every motorcycle has two master cylinders, both vented to the atmosphere. Over time, moisture, dust, smoke, and contaminants can work their way into the system, reducing braking performance and potentially leading to brake failure if ignored.
The good news? It’s simple preventative maintenance that helps keep your bike safe and ready for the riding season ahead.
If your brake fluid looks dark, cloudy, or hasn’t been changed in a while, it may be time for a master cylinder flush.
Swing by Trev Deeley Motorcycles, book your service appointment at 604-291-2453, and get your bike ready for summer riding.