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Electrosport Generator Rotor
Electrosport Generator Rotor


Description See Also: 1 Review 2 Questions Fitment Part Numbers
Item #ECT0001

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1 Review

5 out of 5 stars
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Verified Purchaser
Over 5 months ago Park City, UT
5 out of 5 stars
Saved the day

Super quick shipping. Fit perfect. Saved my bike!

2 Questions

  • Answered:   2
  • Not Yet:   0

Question asked by Syves

Question: How is this better than OEM?
Question asked Over 3 years ago
You mention it being a high-quality replacement for an OEM device that is prone to failure, so what makes this better than the OEM version? What type of insulation do you use for the windings? I have heard a high-temp polyimide winding insulation is almost a necessity in these to keep them lasting more than a year.
Question answered by MotoSportExpert
User's contributor status: Expert MotoSport Staff
Question answered Over 3 years ago
Answer: For more information on manufacturing and design I would recommend contacting Electrosport directly at
Phone: (949) 305-4200

Question asked by big0nate

Question: Why doesn't my bike batetry charge?
Question asked Over 6 years ago
i bought this generator rotor for my 79 Honda cb750 k, but now i have no charging volts. with the old one that i thought was broken i had 13 which isn't enough to charge my bike and let it rev. now with the new one i only have 12. even less than before. what happened?
Question answered by MotoSportExpert
User's contributor status: MotoSport Staff
Question answered Over 6 years ago
Answer: Here is what Electrosport had to say.

"Maybe the rotor is bad. Check the resistance of the rotor by measuring between the two copper slip rings. It should be right about 5.3 ohms. If it is, then you probably have a broken regulator, which could be tested by bypassing the regulator circuit."


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# Part Numbers

Product Variant Manufacturer Part #
Electrosport Generator Rotor ESF901