Franks Forks Hard-Chromed Fork Tubes
The standard length of the Kayaba fork tubes is 23.5” (597 mm, OEM 45977-73).
- Fork tubes by Franks Forks
- for Kayaba front fork
- fits Sportster 1973-1974, FX 1973-1977
- steel, hard-chromed
- length: 23.5”
- Ø 35 mm
- thread: M26 x 1.0
- replaces Harley-Davidson part number HD 45977-73
- USA
- gross weight: 4.83 kg
Show-chromed vs. Hard chromed
From the chemist's point of view, chrome is always the same: a kind of metal with a defined hardness and resistance against wear. From this point of view no chrome is harder than any other one. The secrets behind the terms show-chromed and hard chromed are
- the preparation of the base, which is chromed, and
- the thickness of the chrome layer.
Show-chrome means a thin layer (up to 1 µm) on a highly polished base. This layer has not the same longevity as the so-called hard chrome, simply due to its lesser thickness.
Hard chroming means applying galvanically a substantially thicker chrome layer on the base. Due to its thickness the finished surface is much more durable and withstands corrosion better than show-chrome.
Have any questions?
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