---
product_id: 40582726
title: "(P400485100029) 58mm 144cc Big Bore Cylinder Kit"
brand: "athena"
price: "6781.18 DT"
currency: TND
in_stock: true
category: "Athena"
url: https://www.desertcart.tn/products/40582726-p400485100029-58mm-144cc-big-bore-cylinder-kit
store_origin: TN
region: Tunisia
---

# 144cc Big Bore Power Boost Widened Water Jackets for Superior Cooling Bolt-On Installation, No Machining (P400485100029) 58mm 144cc Big Bore Cylinder Kit

**Brand:** athena
**Price:** 6781.18 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Unleash Raw Power with Precision Italian Engineering!

## Quick Answers

- **What is this?** (P400485100029) 58mm 144cc Big Bore Cylinder Kit by athena
- **How much does it cost?** 6781.18 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/40582726-p400485100029-58mm-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

- • **Effortless Bolt-On Upgrade:** No machining needed in most cases—get your power upgrade done fast and hassle-free.
- • **Molybdenum-Coated Forged Piston:** High-performance wear resistance for extended engine life and aggressive riding.
- • **Race-Proven Yamaha Factory Specs:** Engineered for peak performance and reliability, straight from Italy’s precision craftsmanship.
- • **Durable Nickel-Carbide Cylinder Lining:** Maximize longevity and consistent power output under extreme conditions.
- • **Optimized Cooling with Widened Water Jackets:** Keeps your engine cooler, reducing power loss and boosting sustained performance.

## Overview

The Athena 58mm 144cc Big Bore Cylinder Kit is a high-performance upgrade designed for Yamaha YZ 125 LC (1997-2004). Crafted from aluminum with a nickel-carbide coated cylinder and a molybdenum-coated forged piston, it delivers enhanced durability and power. Featuring widened water jackets for superior cooling and a mostly bolt-on installation, this kit offers a reliable, race-proven solution to elevate your bike’s engine performance.

## 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: Yamaha YZ 125 LC 1997-2004.

## Features

- Package Dimensions: 15.494 H x 33.528 L x 20.573 W (centimetres)
- Package Weight: 5.599 pounds
- Built from race proven designs to Yamaha factory specifications
- Country of Origin : Italy

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IKII01A |
| Best Sellers Rank | #354,850 in Automotive ( See Top 100 in Automotive ) #48 in Powersports Cylinder Heads |
| Brand | Athena |
| Customer Reviews | 3.8 3.8 out of 5 stars (28) |
| Date First Available | December 19, 2009 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.31 pounds |
| Item model number | P400485100029 |
| Manufacturer | Athena |
| Manufacturer Part Number | P400485100029 |
| Model | P400485100029 |
| Product Dimensions | 8.27 x 14.57 x 6.3 inches |

## Images

![(P400485100029) 58mm 144cc Big Bore Cylinder Kit - Image 1](https://m.media-amazon.com/images/I/51OE5YC3O6L.jpg)

## Frequently Bought Together

- Athena (P400485100029) 58mm 144cc Big Bore Cylinder Kit
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**Shop now:** [https://www.desertcart.tn/products/40582726-p400485100029-58mm-144cc-big-bore-cylinder-kit](https://www.desertcart.tn/products/40582726-p400485100029-58mm-144cc-big-bore-cylinder-kit)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-31*