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  • Banshee 4MM 115 Long Rod Stroker crankshaft-KOYO 8 Ball *NEW* Parts - New
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Koyo 8 Ball Crankshaft, 4-Mil Stroker 58mm *NEW*

Koyo 8 Ball Crankshaft, 4-Mil Stroker 58mm *NEW*

SKU: 00059383

Description (select to expand)
  1. Forged 4mill stroker crankshaft.
  2. 115mm long rods. 
  3. Upper and lower rod bearings are high quality silver caged.
  4. Trued and welded.
  5. KOYO 8 ball bearings on both the inner and outer.
  6. KOYO bearings are the best bearings you can get. The 8 ball is a high speed bearing that can handle a Banshee's high RPMs.
  7. Every crank is inspected for proper rod clearance. 
  8. Center webs are pinned so the crank won't twist out of phase. 
  9. This is a drop in crankshaft. No case modifications are needed.
  10. The 4-mil 115 rod crank does require the use of certain pistons (795 Wiseco), along with custom stroker domes or aftermarket cylinders designed for the 4mm 115 rod crankshaft - depending on your specific set-up. 
$550.00 USD
$550.00 USD
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Fitment: Yamaha Banshee 1987 - 2006

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