Wiseco Top & Bottom End Rebuild Kit
Includes a piston kit, crank assembly, main crank bearings, and a full gasket kit with oil seals

Fits:
2004-2007 Honda CRF250R

Top End Description:
Performance sets designed for a piston replacement
Top-end gasket sets include high-performance head, base, intake and exhaust gaskets
Cost-effective way to raise compression without expensive high-compression pistons or cylinder head work
Made in the USA

Contents:
7800YB - 78.00MM RING SET .9MM X 1.5MM
CW16 - ROUND WIRE PIN LOCKS 16MM (PAIR)
S686 - PIN- 16 X 10.3 X 41.5mm UNCHROMED SW
TOP END GASKET SET

Displacement: 249cc
Bore - Standard: 78.00mm
Bore - Actual: 78.00mm
Bore - Oversize: STD
Stroke: 52.2mm
Cylinders: 1
Compression Ratio - Actual: 12.9:1
Skirt Coating: Moly

Bottom End Description:
  • Each kit contains everything you need to complete your rebuild the right way, the first time- crankshaft and connecting rod, all applicable bearings, and complete bottom end gasket kit made to meet or exceed OEM.
  • Wiseco connecting rods are double forged from a dedicated forging and feature shot peening, oil slots, and coated bronze thrust washers.
  • Bottom end gasket kits are made from premium materials, exceeding OEM standards, to provide exceptional seal between critical mating surfaces.
  • Main bearings are manufactured to the highest quality standards. Each is case hardened for maximum life and smooth operation at high RPM’s.
  • Corrosion resistant surface treatment to prevent corrosion and pitting over long term use or storage. This will add to the life as well the strength of the assembly.
  • Top end of rod is bushed for oil retention and eliminates pin galling. The bottom end rod bores are case hardened to 58-62 RC to optimize bearing running surface.
  • The crank pin bearings are manufactured from the highest quality, hot rolled steel case hardened to 58-62 RC to extend the lifetime of the assembly.
  • Caged needle roller bearings to provide the highest possible RPM.

Questions?
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SHIPPING:
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EBAY LISTING: 
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INTERNATIONAL BUYERS: 
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