---
product_id: 19981922
title: "(P400485100003) 54mm 125cc Standard Bore Cylinder Kit"
brand: "athena"
price: "46374555₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Athena"
url: https://www.desertcart.vn/products/19981922-p400485100003-54mm-125cc-standard-bore-cylinder-kit
store_origin: VN
region: Vietnam
---

# Aluminum Build Race Proven 125cc Power (P400485100003) 54mm 125cc Standard Bore Cylinder Kit

**Brand:** athena
**Price:** 46374555₫
**Availability:** ✅ In Stock

## Summary

> 🏁 Elevate Your Off-Road Game!

## Quick Answers

- **What is this?** (P400485100003) 54mm 125cc Standard Bore Cylinder Kit by athena
- **How much does it cost?** 46374555₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/19981922-p400485100003-54mm-125cc-standard-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

- • **Perfect Fit:** Designed specifically for Yamaha YZ 125 models from 1997-2004.
- • **Unleash Your Ride:** Maximize horsepower and service life for your Yamaha Dirt Bike.
- • **Trusted by Champions:** Chosen by elite race teams across motocross, supercross, and more.
- • **Race-Ready Performance:** Engineered to meet Yamaha factory specifications for top-tier racing.
- • **Durability Meets Design:** Nickel-carbide coating ensures long-lasting reliability under pressure.

## Overview

The Athena P400485100003 54mm 125cc Standard Bore Cylinder Kit is a high-performance upgrade designed for Yamaha YZ 125 models from 1997 to 2004. Crafted from durable aluminum and lined with a nickel-carbide coating, this kit maximizes horsepower and service life, making it a favorite among top racing teams in various motorsport disciplines.

## Description

Contracted from aluminum, the cylinder is lined with a nickel-carbide coating for durable, reliable performance. Features a forged piston that's been molybdenum coated for high performance use and extended wear life. Premium quality gasket kit meets or exceeds OEM specifications. Includes: Cylinder, piston, piston pin, piston pin rings, gasket kit. Fits: Yamaha YZ 125 LC Factory 1997-2004.

Review: YZ125 2001 - Sin problemas para la Yamaha YZ 125 2001
Review: Very nice - Great kit was very easy to put together had to dubble up on seals to get the proper squish but they give you more than enuf to use and the power difference is very noticeable and very fast compared to my previous 55mm cylinder only thing that wasn't great were the directions pretty hard to understand

## Features

- Contracted from aluminum, the cylinder is lined with a nickel-carbide coating for durable, reliable performance
- Built from race proven designs to Yamaha factory specifications
- Chosen by the top race teams in all forms of racing including super cross, motocross, GNCC, superbike, and more
- Maximizes HP and service life in Yamaha Dirt Bikes and offroad vehicles
- Fits the following rides Yamaha YZ 125 1997-2004

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Athena |
| Brand | Athena |
| Model | P400485100003 |
| Item Weight | 3.31 pounds |
| Product Dimensions | 12.9 x 8.2 x 6.1 inches |
| Country of Origin | Italy |
| Item model number | P400485100003 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | P400485100003 |
| OEM Part Number | P400485100003 |

## Images

![(P400485100003) 54mm 125cc Standard Bore Cylinder Kit - Image 1](https://m.media-amazon.com/images/I/51zNoLRLqLL.jpg)
![(P400485100003) 54mm 125cc Standard Bore Cylinder Kit - Image 2](https://m.media-amazon.com/images/I/418gIcyZmuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ YZ125 2001
*by L***. on April 14, 2026*

Sin problemas para la Yamaha YZ 125 2001

### ⭐⭐⭐⭐⭐ Very nice
*by M***S on October 10, 2017*

Great kit was very easy to put together had to dubble up on seals to get the proper squish but they give you more than enuf to use and the power difference is very noticeable and very fast compared to my previous 55mm cylinder only thing that wasn't great were the directions pretty hard to understand

### ⭐⭐⭐⭐⭐ GREAT VALUE!
*by R***H on June 28, 2019*

REPAIRED MY GRANDSONS YZ125 WITH THIS KIT AND IT RUNS GREAT NOW. YOU SHOULD SEE THE HUGE GRIN ON HIS FACE EVERY TIME IT STARTS, FIRST KICK!

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**Shop now:** [https://www.desertcart.vn/products/19981922-p400485100003-54mm-125cc-standard-bore-cylinder-kit](https://www.desertcart.vn/products/19981922-p400485100003-54mm-125cc-standard-bore-cylinder-kit)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-03*