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Bottom Bracket Conversion Kit - for KMB GT Frame

Bottom Bracket Conversion Kit - for KMB GT Frame

  • $ 1000

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Bottom Bracket Conversion Kit

Convert your American Bottom Bracket with one piece cranks to square tapered 3 piece cranks (cranks not included). A must have if you want to put a 4 stroke on a standard cruiser and need to use the wider cranks. Cups and bearings included.

  • Length 132mm
  • Cup O.D. 51.5mm, Ball Size 5/16" X 9
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Only California shipped orders are charged sales tax



Our gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.

If you need help with installation or troubleshooting, kindly use our Builder Locator to find builders near you. Builders are experts with motorized bicycles.


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