Turbo Diagnosis Update

Hey everyone! The Turbo S Diagnosis and Troubleshooting article is almost complete. There has been a slight delay because of a new issue that arose within the past few days that is still in progress of being solved and fixed.

One of the 2014 black Turbo S models came in with a particular issue with the motor engaging once pressure to the pedals occurred in Full Active Mode and Eco (30%) mode. You might think, “Isn’t that what the bike is supposed to do?” Well, yes. However, with this particular one, the motor engaged to the Turbo max speed of 28mph without disengaging when the brake was pulled and acted as a throttle (no pedaling required) rather than an electric assist. This could be compared to the gas pedal on your car sticking on the floor and your car traveling at top speed until you shut it off or change gears (on the Turbo, going to No Assist mode or Regeneration mode would disengage the motor). As a side note, one the Turbo was in Regeneration mode, it was much more difficult to pedal than normal while in this mode and the wheel would take a small 1/8 to 1/4 turn backwards when the pedals stopped turning.

As you may have guessed with continual throttle at 28mph, it totally cooked the rear brake pads and most of the front.

So, I will be problem solving it for a day or two more and running several tests while collaborating with Specialized technicians to diagnosis this and of course, finish up the results in Part 2 of the Turbo Review. Thanks for being patient. I hope this gets you curious about the bike and working on it more. I still think the bike is fantastic and doesn’t normally reflect any or all of these problems. In large, it is the most trouble-free electric assist bike I have worked on out of over twenty different brands. These issues are published to conglomerate the most information possible in order to have the largest audience possible understand how to work on the them and maintain them.

– SNC

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