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Wiseco Bottom End Kit - WPC149 - 2007-2020 Honda CRF150R / CRF150RB Expert

Regular price $398.36 USD
Regular price Sale price $398.36 USD
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Wiseco Bottom End Kit - WPC149 - 2007-2020 Honda CRF150R / CRF150RB Expert

For over seven decades, Wiseco, founded in 1940 by Clyde Wiseman, has been a leading manufacturer of OEM-compatible pistons and crankshafts for a variety of motorsport applications, delivering professional-grade performance optimization solutions.

Complete bottom end gasket sets, containing all seals necessary for assembly, are provided with all Wiseco crankshafts, along with high-grade main bearings.. 

Honda CRF150R / CRF150RB Wiseco Bottom End Kit:

  • Crankshaft kits include crankshaft, top end bearing, premium main bearings, and a complete bottom end gasket set that includes all seals and gaskets needed to do the job
  • Crankshafts are factory assembled and precision trued to OEM specifications
  • Double-forged Wiseco connecting rods maintain superior dimensional consistency through improved grain flow
  • Shot-peeing eliminates residual stresses and smoothly blends the rod forging surfaces
  • Corrosion-resistant surface treatment
  • Top and bottom end rod bores case hardened to 58-62 RC to optimize bearing running surface
  • Crank pin bearing radial running clearance is optimized to ensure maximum performance
  • Precision honing ensures ultra round bearing surface
  • Precision-engineered oiling slots maximize rod strength and bearing life
  • Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of top end due to thermal transfer from the piston
  • Silver-coated bronze phosphor thrust washers, with dimpled design to increase oil retention and reduce friction between rod and washer interface
  • Crank pin bearings are manufactured from the highest quality hot rolled steel; case-hardened to 58-62 RC
  • Caged needle roller bearings provide the highest possible rpm
  • Precision-machined crank webs
  • Wiseco complete gasket kits are made from premium materials for maximum sealing and reliability; all bearings are OEM-quality for reliability and performance


  • 2007-2020 Honda CRF150R / CRF150RB Expert  / Part Number WPC149

If needed Click here for other performance parts CRF150R / CRF150RB

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