RMZ 300cc Stealth Big Bore / Long Rod Stroker

Max RPM's Logo

Please call to order 608-842-0680

Availability: In stock.

Regular Price: $2,270.00

Special Price: $1,695.00


Quick Overview

For: 2004-Current RMZ250


Product Description

For: 2004-Current RMZ250


Cylinder: Install forged Aluminum sleeve, and plate with Ceramic Nickel Bore coating.

Crankshaft: Stroke and balance with long rod installed.

CP 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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