---
product_id: 41906899
title: "Athena (P400250100011) 58mm 144cc Big Bore Cylinder Kit"
brand: "athena"
price: "13532 kr"
currency: DKK
in_stock: true
reviews_count: 1
url: https://www.desertcart.dk/products/41906899-athena-p400250100011-58mm-144cc-big-bore-cylinder-kit
store_origin: DK
region: Denmark
---

# 144cc Big Bore Power Boost Widened Water Jackets for Superior Cooling Bolt-On Installation, No Machining Athena (P400250100011) 58mm 144cc Big Bore Cylinder Kit

**Brand:** athena
**Price:** 13532 kr
**Availability:** ✅ In Stock

## Summary

> 🔥 Power Up Your Ride with Athena’s Big Bore Boost! ⚡

## Quick Answers

- **What is this?** Athena (P400250100011) 58mm 144cc Big Bore Cylinder Kit by athena
- **How much does it cost?** 13532 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/41906899-athena-p400250100011-58mm-144cc-big-bore-cylinder-kit)

## Best For

- athena enthusiasts

## Why This Product

- Trusted athena brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Advanced Cooling Tech:** Widened water jackets reduce heat loss, keeping your engine cooler and performing longer.
- • **Race-Proven Power Upgrade:** Unlock 144cc of raw, track-tested power designed to dominate Kawasaki KX 125 (2003-2007).
- • **Durable Nickel-Carbide Coating:** Aluminum cylinder lined for maximum wear resistance and extended service life.
- • **High-Performance Forged Piston:** Molybdenum-coated piston ensures peak performance and longevity under extreme conditions.
- • **Effortless Bolt-On Installation:** No machining needed—get back on the trail faster with clear, step-by-step instructions.

## Overview

Athena’s 58mm 144cc Big Bore Cylinder Kit is a precision-engineered upgrade for Kawasaki KX 125 (2003-2007), delivering race-proven power and durability. Featuring a nickel-carbide coated aluminum cylinder, widened water jackets for enhanced cooling, and a molybdenum-coated forged piston, this bolt-on kit requires no machining and includes all necessary components plus installation instructions. Ideal for riders craving reliable, high-performance offroad power with extended engine life.

## Description

Athena's Big Bore kit brings the raw power you have been missing in an easy to install, reliable package that bolts on with no machining needed in most cases, and includes easy-to-follow step-by-step installation instructions. Constructed from aluminum, the cylinder is lined with a nickel-carbide coating for durable, reliable performance, and the water jackets have been widened for a higher flow rate, cooling the cylinder, resulting in less power lost due to heat. Features a forged piston that's been molybdenum coated for high performance use and extended wear life. Includes: big bore cylinder, big bore piston, piston pin, piston pin rings, gasket kit. Note: To achieve optimum performance re-jet the carburetor with the available jet kits. Fits: Kawasaki KX 125 L.C. 2003-2007.

## Features

- Athena's Big Bore kit brings the raw power you have been missing in an easy to install, reliable package that bolts on with no machining needed in most cases, and includes easy-to-follow step-by-step installation instructions
- Built from race proven designs to Kawasaki factory specifications
- Podium-finisher with world-class teams across all forms of high-performance racing including super cross, motocross, GNCC, superbike, and more
- Maximizes power and service life in Kawasaki Dirt Bikes and offroad vehicles
- Fits the following rides Kawasaki KX 125 2003-2007

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Athena |
| Brand | Athena |
| Model | P400250100011 |
| Item Weight | 4.19 pounds |
| Product Dimensions | 8.27 x 14.57 x 6.3 inches |
| Item model number | P400250100011 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | P400250100011 |

## Images

![Athena (P400250100011) 58mm 144cc Big Bore Cylinder Kit - Image 1](https://m.media-amazon.com/images/I/51bxS11jeLL.jpg)
![Athena (P400250100011) 58mm 144cc Big Bore Cylinder Kit - Image 2](https://m.media-amazon.com/images/I/51D5oNvBKmL.jpg)
![Athena (P400250100011) 58mm 144cc Big Bore Cylinder Kit - Image 3](https://m.media-amazon.com/images/I/51sfNyK7aGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Went together easy!
  

*by M***T on Reviewed in the United States on September 10, 2014*

Well made kit! Went together easy!

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**Shop now:** [https://www.desertcart.dk/products/41906899-athena-p400250100011-58mm-144cc-big-bore-cylinder-kit](https://www.desertcart.dk/products/41906899-athena-p400250100011-58mm-144cc-big-bore-cylinder-kit)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-23*