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Posts Tagged ‘spongy brake feel’

Screen Shot 2016-07-10 at 3.41.17 PMI’ve never been ask this question, but I was curious how you know if you’re under Federal investigation?

In Harley-Davidson’s case it might have been a knock on the door of the Milwaukee HQ.

As it turns out, the U.S. government is investigating complaints from Harley-Davidson owners who say their motorcycle brakes failed without warning.  The National Highway Traffic Safety Administration (NHTSA) states the investigation covers 430,000 motorcycles with model years from 2008 through 2011 and the investigation stems from motorcycles with an anti-lock braking system.

A common motorcycle maintenance task is to replace the hydraulic fluid in the brake system.  Check your service manual, but for many Harley-Davidson models it’s recommended to change the D.O.T. 4 fluid and flush the brake system every two years.

Did you know brake fluid can collect condensation over time from the outside air?  Brake fluid collects water in a similar fashion as your McDonald’s soda cup has water droplets on the outside. Hydraulic fluid will over time absorb water which causes the fluid to boil when the brakes are applied and will reduce effectiveness of the system.  A spongy brake feel might be a combination of contaminated brake fluid or air in the system. Either way, changing the brake fluid is often recommended.

41300152_obBut, I’ve digressed.  Motorcyclists have reported that the brakes on the hand lever and foot pedal did not work, causing one driver to crash into a garage door.

Government regulators said they’ve received 43 complaints, three reports of crashes and two reports of injuries.  The NHTSA said it is possible that some riders who experienced brake failure did not change the motorcycle’s brake fluid every two years as recommended by Harley-Davidson Inc.  The old fluid may corrode valves in the anti-lock braking system, but even if riders did not change the fluid, the sudden brake failure “is a concern.”This is not a motorcycle product safety recall as of yet.

Harley-Davidson stated it was aware of the Federal investigation and that it was cooperating with regulators.

Photos courtesy of H-D.

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