Wiseco Top End Kit

• Product Details

  4-Stroke Top End Kits:

  The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.

  2-Stroke Top End Kits:

  Wiseco's legacy is rooted in 2-stroke piston manufacturing and performance, dating over 80 years ago back to 1941. Today, Wiseco 2-stroke pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on.

  Features of Both Top End Kits:

  • Engineered, forged, and machined in the U.S.A. in Mentor, OH.
  • Designed and built for each specific 2-stroke or 4-stroke powersports engine.
  • Improved tensile strength of forged material optimizes strength and service life.
  • Dedicated forgings and additional lightening operations (2-stroke) allow for optimized strength-to-weight ratio.
  • Includes high-quality piston rings, wrist pin(s), and circlips.
  • Note: Product Images may differ from the actual product. Image may be a representation of this item.

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• Fitment

• # Part Numbers

  Product Variant	Manufacturer Part #
  0.50mm Oversize to 60.50mm	K101
  0.50mm Oversize to 64.50mm	K130
  0.50mm Oversize to 71.50mm	K106
  1.00mm Oversize to 61.00mm	K102
  1.00mm Oversize to 65.00mm	K131
  1.00mm Oversize to 71.00mm, 10.25:1 Compression	K1045
  1.00mm Oversize to 72.00mm	K107
  1.50mm Oversize to 61.50mm	K103
  1.50mm Oversize to 72.50mm	K108
  2.00mm Oversize to 72.00mm, 10.25:1 Compression	K10751
  2.00mm Oversize to 78.00mm, 12:1 Compression	R1052
  2.50mm Oversize to 72.00mm, 10.25:1 Compression	K1076
  3.00mm Oversize to 65.00mm, 10.25:1 Compression	K823
  3.00mm Oversize to 69.00mm, 10.25:1 Compression	K810
  3.00mm Oversize to 73.00mm, 10.25:1 Compression	K1085, K11051
  4.00mm Oversize to 65.00mm, 10.25:1 Compression	K836
  4.00mm Oversize to 69.00mm, 10.25:1 Compression	K844
  70.00mm Bore, 10.25:1 Compression	K1015
  Flat Top 3.00mm Oversize to 84.00mm, 13.5:1 Compression	CK181
  Standard Bore 66.50mm, 13.4:1 Compression	CK159
  Standard Bore 67.00mm, 12.4:1 Compression	CK169
  Standard Bore 67.00mm, 12:1 Compression	CK238
  Standard Bore 67.00mm, 13.3:1 Compression	CK130
  Standard Bore 67.00mm, 13.4:1 Compression	CK206
  Standard Bore 67.00mm, 13.5:1 Compression	CK222
  Standard Bore 67.00mm, 13.8:1 Compression	CK226
  Standard Bore 73.40mm, 13.5:1 Compression / NO RINGS INCLUDED - USE NEW OEM RINGS	CK190
  Standard Bore 74.00mm, 13:1 Compression	CK122
  Standard Bore 75.00mm, 13.2:1 Compression	CK161
  Standard Bore 80.00mm, 13.5:1 Compression	CK233
  Standard Bore 81.00mm, 13:1 Compression	CK104
  Standard Bore 84.00mm, 13.5:1 Compression	CK227
  Standard Bore 95.00mm, 10.5:1 Compression	CK177

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