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Vertex 4-Stroke Piston Kit - Stock Bore

Retail: $149.99 - $279.99
$129.99 - $239.99
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Product Description

The MotoSport.com Vertex 4-Stroke Piston Kit - Stock Bore includes one of each of the following components with the following attributes:

Vertex 4-Stroke Piston Kit:

Important Note: This piston is for a stock sized bore. Please measure your cylinder to check clearance before ordering.

When it comes to power and performance, Vertex four-stroke pistons are hard to beat. Forged from the highest quality 2618 aluminum alloy, Vertex pistons are perfectly suited to handle the rigors and high pressures of today's modern four-stroke engines. Plus, to aid in the break-in process and reduce wear, every Vertex piston utilizes a unique Molybdenum Disulphide (MOS2) coating on the piston skirt.

Vertex Piston includes:

  • Premium quality Vertex piston.
  • Complete set of nitride coated or chrome-plated piston rings.
  • Fully case-hardened wrist pin.
  • Circlips.
  • Competitive price!

Cometic Top End Gasket Kit:

State-of-the-art gaskets is what Cometic has been doing since its inception in 1989. This comes from their dedication to constructing gaskets for the most demanding race circuits like AMA and NASCAR. Today's lightweight engines are producing more horsepower, higher cylinder pressure, clamp load and extreme temperatures. Cometic's commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance.

Cometic meets the needs of each specific gasket by using materials to match. Even the basic top end gasket kit features different materials for each gasket. The head gasket is constructed from non-asbestos, flexible graphite that is laminated to a stainless steel core. The manifold and base gaskets are constructed from non-asbestos nitride rubber-bound fiber. Cometic also includes copper gaskets where needed.

Cometic designs and builds their gaskets in the U.S.A.

Note: Image is for reference only, actual Kit may vary based on contents and fitment.

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Pro-X Piston Kit - 4-Stroke - Vertex 4-Stroke Piston Kit - Stock Bore
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1-4 of 4
Overall
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Really nice.
This vertex piston made it easy. I got the kit and everything was there a, tolerances we right on, and it was clean. I would use this anytime. I ride a crf 450r.
Overall
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Camden OH
Very pleased
One season with this top end and so far so good. Still hits hard!
Overall
Location: Redding, CA
Don't Make A Mistake
I have talked to many people who have paid big bucks for a tricked out piston, only to find it unbalanced the motor, or alters the power too radically. These pistons have developed a good reputation as reliable pistons, close to OEM specs.
Overall
Top 50 Contributor
Location: Bismarck, ND
Impressed!
got this piston for my crf250 and planned on it only lasting me a few hours 40 hours later on it still running strong and showing no sign of wear. plus it was super easy to install and anyone with some mechanical knowledge can do it. Highly recommend vertex!
1-4 of 4
Total Questions (1)
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1-1 of 1
yamaharider171 2 months 16 days ago
Compression ratio???
MotoSport Staff
2 months 16 days ago Location: Portland, OR, USA
The compression ratio will depend on what model bike you have. This Vertex kit will have the same compression ratio as your stock piston.
1-1 of 1

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