BBR Big Bore Kit

• Product Details

  Easy bolt-on power. This is the largest bore kit available that does not require boring your engine cases for additional cylinder sleeve clearance. New aluminum cylinder, high-performance BBR MX camshaft with lightweight piston and gaskets are included in this complete and ready to go kit.

  • Aluminum cylinder with plated aluminum sleeve.
  • BBR high-performance camshaft.
  • Lightweight aluminum piston.
  • Gasket kit including cylinder head, cylinder base and ignition cover gaskets.

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• Customer Reviews

• Q&A

• Fitment

• # Part Numbers

  Product Variant	Manufacturer Part #
  143cc BBR Big Bore Kit	411-KLX-1403

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