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CAT # FWB-352 (1 Review) Write a Review

$3.25 each
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Product Description
35 AMP BRIDGE. 200 P.I.V. 1 1/8" square.
WARNING: May cause cancer or reproductive harm.
California Prop. 65
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Customer Reviews (1 Review)

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Great, cheap upgrade for vintage motorcycles.

Reviewer: from Detroit, USA

Most motorcycles made prior to the mid-to-late 1970's use a selenium rectifier to convert AC from the alternator to DC to charge the battery. These solid-state rectifiers are about 7% more efficient with zero current loss and are less fragile (both physically and electrically). This allows you to run the headlight during the daytime for safety--and to comply with the newer laws--without running the battery flat. For smaller bikes, such as my '73 Honda CB350 twin, this is a direct replacement and takes about 5 minutes to install. If you have a three-phase alternator (generally 550cc engines and above), you'll need two of these components wired together in parallel (wiring diagram: One caveat: Make sure that the device you're replacing isn't a combination regulator/rectifier or you'll overcharge the battery and boil it dry. Or, alternately, you can build a replacement, solid-state regulator too.

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