7841 Morrison St. · Morrisonville WI 53571 · 608-842-0680

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YZF/WR 300cc Stealth Big Bore / Long Rod Stroker

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YZF/WR 300cc Stealth Big Bore / Long Rod Stroker

Please call to order 608-842-0680

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Availability: In stock.

Regular Price: $2,270.00

Special Price: $1,695.00

Quick Overview

For: 2001-Current YZ / WR 250F

Product Description

For: 2001-Current YZ / WR 250F

Includes:
Cylinder: Install forged Aluminum sleeve, and plate with Apticote 2000 ceramic bore coating.
Crankshaft: Stroke and balance with long rod installed.
Wiseco Piston kit
Necessary Gaskets
Base Spacer Plate
Longer Cam Chain
Longer Chain Guides
Longer head bolts

No Case Mods Required
This price is to modify your cylinder and crankshaft. Call us for a bolt in price.
Upper head mounts must be modified to clear taller cylinder, we do not provide instructions to do this.

This kit uses a huge stroke and slightly bigger bore. The torque gains are massive but the engine still revs quickly and pulls out on top like a smaller 250F. Durability is very, very good. It is a great choice for hybrid youth ATV's and vets that like a small 250f but hate getting yarded by 450's on the hole shot.


 


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