“Fearsome Extreme” Full Wave Rectifier S90 3 wire in-the-frame


S90 3 wire in-the-frame

  • Yellow: male terminal
  • Red/White: male terminal
  • Pink: male terminal


The S90 rectifier has just 3 wires. It does not have a ground wire. It grounds only through the brass center boss.

A good upgrade for many would be to add a ground wire, sold separately here.

Ground Wire Upgrade

Jon Pardue designed this for riders who wish to bolt on one last rectifier, then forget about it forever. If you ride one of these bikes like your life depends on it to stay running, then your spirit is captured in this rectifier. This rectifier is built to be water tight, corrosion proof, and nearly bullet proof. Its got the strongest, highest specifications parts I can locate. Low cost is not the object, highest quality is all that matters here.

The wires exit the rectifier at 90 degrees to the bolt hole, just like the OEM Honda part. There are no wires to snag, become unplugged, hang down, dangle, corrode, loosen, weaken, lose grip, or short out on nearby metal components.

Nowadays electrical parts have almost no warranty, no support, and no explanation. We take things differently. If you can break this, send it back with the story of how you did it, and it gets replaced. It may even make it to our “Hall of Blame” which is an almost empty place.


2-wire Fearsome Extreme rectifier for 1/2 wave stators are also available for bikes like the Z50a, CT70, and C100. Inquire for details.

We make several styles to match various bikes. Inquire for bikes not listed, we add new parts all the time and will gladly make a rectifier for your bike.

Full Wave Bridge Rectifier Image

How a Full Wave Bridge Rectifier Works

Additional information

Ground Wire


Male to Female Adaptor


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