---
product_id: 90357043
title: "4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike"
brand: "gdae10"
price: "€ 884.27"
currency: EUR
in_stock: true
reviews_count: 8
category: "Gdae10"
url: https://www.desertcart.gr/products/90357043-4-stroke-125cc-15w-40-engine-motor-single-cylinder-air
store_origin: GR
region: Greece
---

# 4-stroke air-cooled engine 4-speed manual transmission 6.5 kW max power 4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike

**Brand:** gdae10
**Price:** € 884.27
**Availability:** ✅ In Stock

## Summary

> ⚡ Unleash the beast in your mini dirt bike with power and precision!

## Quick Answers

- **What is this?** 4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike by gdae10
- **How much does it cost?** € 884.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/90357043-4-stroke-125cc-15w-40-engine-motor-single-cylinder-air)

## Best For

- gdae10 enthusiasts

## Why This Product

- Trusted gdae10 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Kickstart Ready:** Classic kick-starter ensures you’re always ready to roll, no battery needed.
- • **Wide Compatibility:** Fits Honda CRF50/70, XR50/70, and multiple mini trail models effortlessly.
- • **Precision Gear Control:** 4-speed manual clutch (1 down, 3 up) for ultimate riding mastery.
- • **Power-packed Performance:** 6.5 kW max power at 7500 RPM fuels your need for speed.
- • **Efficient Air-Cooled Design:** Reliable single-cylinder 4-stroke engine keeps cool under pressure.

## Overview

This 4-stroke 125CC single-cylinder air-cooled engine delivers 6.5 kW of power and 8.0 Nm torque, featuring a 4-speed manual transmission with a kick-starter. Designed for Honda CRF50/70 and XR50/70 dirt bikes, it offers reliable performance with a compact, efficient design and broad compatibility for mini trail and pit bikes.

## Description

Buy 4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike: Rebuild Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: It fit - Kids broke it in, runs strong, amazed to find a replacement engine/transmission at this price. Had to tweek the motor mounts in a 125 SSR and it's been running great so far. Only negetive is, it does not have insulaters in the moter mount bosses like the old moter, runs great, just vibrates pretty good.
Review: Disappointed - Engine works. Started right up once installed. This is not 4 up, this 1 down and 3 up. This is also set up for an electric start. The description is wrong. I made it work on my daughters dirtbike though I specifically picked this because it was supposed to by 4 up which what she was used to. Had to reseal the main seal on the gear that turns the chain, it started leaking oil immediately. Though it is an easy fix, it's not something we should have to fix so soon. Disappointed.

## Features

- ★【Power】: Max Power: 6.5 kW/7500r/min±375r/min, Max Torque: 8.0 Nm/5000r/min±250r/min;Idle Speed: 1500r/min, Min Fuel Consumption: ≤370g/kw.h, Ignition System: CDI.
- ★【Type】: Single cylinder, 4-stroke with air-cooled, and clutch operated by hand.
- ★【Gear Ratio】: Gear Ratio:2.833/1.706/1.238/0.958, Compression Ratio: 9.0:1, Primary Reduction;Ratio: 3.722, Carburetor Type:PZ16J,Transmission:4-speed, Manual clutch, 1 down 3 up; Start Mode: Kick-starter.
- ★【High performance】: A high performance engine, perfect for those comfortable with faster engines and have a desire to get up and go; Wide range of applications, can be applied for bicycles, models, skateboards and so on. Excellent quality, great bike engine motor accessories.
- ★【Fits】: Fit fot Honda CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KF8MVBY |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,531,609 in Automotive ( See Top 100 in Automotive ) #784 in Powersports Engine Kits |
| Brand | GDAE10 |
| Customer Reviews | 3.8 3.8 out of 5 stars (34) |
| Date First Available | June 15, 2021 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 47.4 pounds |
| Manufacturer | GDAE10 |
| Manufacturer Part Number | 4-Stroke |
| Model | 125CC Air-Cooled 4-Stroke Motor Engine |
| Product Dimensions | 11.02 x 18.5 x 12.6 inches |
| SAE J300 Viscosity Grade | 15W-40 |
| Size | Type 2 |
| UPC | 610895444638 |
| Vehicle Service Type | ATV |
| Viscosity | 15w-40 |

## Product Details

- **Brand:** GDAE10
- **Liquid Volume:** 900 Milliliters
- **Package Information:** Can
- **Vehicle Service Type:** ATV
- **Viscosity:** 15w-40

## Images

![4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike - Image 1](https://m.media-amazon.com/images/I/619879FykFL.jpg)

## Questions & Answers

**Q: Does the engine come with the clutch (pressure plate) installed or do I need to open up the engine and adjust it? Mine seems very loose**
A: Comes complete but you need to do your home work my friend

**Q: Does this fit honda xr100?**
A: Yes,it fit.

**Q: Will it fit in a suzuki dr 250?**
A: No to small cc

**Q: Does this fit a kawasaki mojave 250?**
A: I coudn't tell you.  It fit the Honda 200 perfectly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It fit
*by L***R on December 12, 2023*

Kids broke it in, runs strong, amazed to find a replacement engine/transmission at this price. Had to tweek the motor mounts in a 125 SSR and it's been running great so far. Only negetive is, it does not have insulaters in the moter mount bosses like the old moter, runs great, just vibrates pretty good.

### ⭐ Disappointed
*by J***V on October 2, 2020*

Engine works. Started right up once installed. This is not 4 up, this 1 down and 3 up. This is also set up for an electric start. The description is wrong. I made it work on my daughters dirtbike though I specifically picked this because it was supposed to by 4 up which what she was used to. Had to reseal the main seal on the gear that turns the chain, it started leaking oil immediately. Though it is an easy fix, it's not something we should have to fix so soon. Disappointed.

### ⭐⭐⭐⭐⭐ 125 on my xr70
*by M***L on November 20, 2023*

It runs great, plenty of power ! Had to do some extensions on the brake pedal to accommodate the new engine but I do really like the engine put on the 2003 xr70 honda

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**Shop now:** [https://www.desertcart.gr/products/90357043-4-stroke-125cc-15w-40-engine-motor-single-cylinder-air](https://www.desertcart.gr/products/90357043-4-stroke-125cc-15w-40-engine-motor-single-cylinder-air)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-03*