Wiseco Big Bore Piston Kit 99mm 4.00OB 12.5:1

$ 246.48

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Product Information

  • Condition: New
  • SKU: 4889M09900-1113
  • MPN: 4889M09900
  • Part: Piston Kit


Racing Choice Pistons are 1 ring, 2-Stroke or 2 ring, 4-Stroke with reduced weight and friction as well as increased power and throttle response. Note that service intervals may be increased over conventional Wiseco Pistons. 2-Stroke Pro-Lite Pistons feature lightweight forging for instant throttle response and maximum torque. Computer engineered piston skirt profiles provide minimal cylinder wall friction. Anti-detonation grooves and new ring land diameter eliminates ring blow-by while maximizing engine performance. Piston kit includes pistons, rings, wrist pins and circlips. Note that oversize requires cylinder sleeving and top end bearing is not included in kits. 4-Stroke Pistons feature dedicated forging for lightweight and superior strength. Race-ready dome design provides improved combustion flow and armor glide skirt coating provides reduced friction (racing applications only). Piston kit includes piston, rings, wrist pin and circlips. Note that oversize requires cylinder sleeving.
  • Product Name: Piston
  • Piston Material: Aluminum Alloy / Forged
  • Bore Size: 99,00 mm
  • Piston Size: +4,00 mm
  • Displacement: 489 cc
  • Stroke Length: 64,80 mm
  • Compression Ratio: 12,5:1 / 12.5:1
  • Engine Type: 4-Stroke
  • Units: Each
  • Riding Style: ATV

This part is compatible with 2

Year Make Model Submodel
2004 Honda Sportrax 450 TRX450R 2x4
2005 Honda Sportrax 450 TRX450R 2x4


Additional Information


Vehicle Compatibility

Year Make Model Submodel

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