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Dirt Bike Top End Engine Rebuild Kit [Bore Size (mm): 47.44 (Stock)] Compatible with 2003-2007 Honda CR85

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$96.95

$ 42 .99 $42.99

In Stock

1.Size:Bore Size (mm): 47.44 (stock)


  • Bore Size (mm): 47.44 (Stock)
  • Compression 8.4:1 - Nikasil Cylinder
  • Namura Top End Repair Kits Include a Top End Gasket Set, Pistons, Rings, Wrist Pins, Circlips and Silver Coated SCM415 High Strength Chromoly Needle Bearings (Where Applicable)
  • Precision Cut Klingersil Coated Steel Head Gaskets for Better Sealing and High-Temperature Resistance
  • Compatibility: 2003-2007 Honda CR85


Namura Top End Engine Rebuild Kit
All Namura Pistons have Molybdenium/Teflon Coatings that Minimize Resistance and Wear to Provide Extended LifeAnodized Domes That Provide Superior Heat Resistance and Extended Life SpanSuper-High Silicone Content for Additional StrengthPremium World Class Rings Produced by the Largest Japanese OEM Supplier in the World
MOS(Teflon/Molybdenum) Coated Skirts
A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures
Machined Smooth Heads
Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horse power and fuel economy by up to 6%
Anodized Domes
Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons
Hypereutectic Casting Process
Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures


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