---
product_id: 706892566
title: "CDI Box,5 Pin AC CDI Racing,SSR 125 Pit Bike Parts,Digital Adjustable 9 Ignition Curves for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike,Racing CDI for 50c 125cc ATV Quad Go Kart"
brand: "hanqimoto"
price: "S$59"
currency: SGD
in_stock: true
reviews_count: 3
category: "Hanqimoto"
url: https://www.desertcart.sg/products/706892566-cdi-box-5-pin-ac-cdi-racing-ssr-125-pit
store_origin: SG
region: Singapore
---

# 9 digital ignition curves high voltage & heat dissipation 5-pin plug easy install CDI Box,5 Pin AC CDI Racing,SSR 125 Pit Bike Parts,Digital Adjustable 9 Ignition Curves for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike,Racing CDI for 50c 125cc ATV Quad Go Kart

**Brand:** hanqimoto
**Price:** S$59
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your ride with precision power — never settle for stock again!

## Quick Answers

- **What is this?** CDI Box,5 Pin AC CDI Racing,SSR 125 Pit Bike Parts,Digital Adjustable 9 Ignition Curves for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike,Racing CDI for 50c 125cc ATV Quad Go Kart by hanqimoto
- **How much does it cost?** S$59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/706892566-cdi-box-5-pin-ac-cdi-racing-ssr-125-pit)

## Best For

- hanqimoto enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Upgrade:** Direct 5-pin replacement for COOLSTER 125cc and compatible ATVs—no mods needed.
- • **High Voltage Performance:** Delivers consistent high voltage output for cleaner engine sound and faster starts.
- • **Precision Ignition Control:** Adjust between 9 digital ignition curves for tailored acceleration and throttle response.
- • **Durable Heat-Resistant Design:** Metal circuit boards with plastic shell ensure excellent heat dissipation and longevity.
- • **Battery-Free Voltage Adjustment:** Easily tweak voltage settings (8V-25V) without the hassle of batteries.

## Overview

The HANQIMOTO 5 Pin AC CDI Box is a high-performance, digital adjustable ignition controller designed for COOLSTER 125cc dirt bikes and compatible ATVs. Featuring 9 selectable ignition curves and a 5-pin plug for easy installation, it enhances throttle response, acceleration, and engine efficiency. Built with durable materials and advanced heat dissipation, it offers reliable, battery-free voltage adjustment from 8V to 25V, making it the ultimate upgrade for riders seeking a competitive edge.

## Description

HANQIMOTO 5 Pin AC CDI Box High Performance Racing Part Digital Adjustable 9 Ignition Curves for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike Chinese 50c 70c 90cc 110cc 125cc ATV Quad Go Kart Pit Dirt Bike【Material】Metal【Connector】5-pin male plug【Voltage】8V-25V adjustable【Other】Voltage can be adjusted without batteriesFeatures:Input overvoltage protection,high voltage regulation accuracy, can achieve 9 degrees adjustable working current in a short time, high charging power, and can accelerate forward on the basis of the original vehicle speed. Suitable for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike Chinese 50c 70c 90cc 110cc 125cc ATV Quad Go Kart Pit Dirt BikeDigital Adjustable CDI Instruction: 1. After the CDI is turned on, the digital tube displays the curve before the last shutting down. 2.Every time you press the button, the number in the digital tube is added up by 1.0-9, and it will be displayed in a loop.0 means no ignition, 1-9 means 9 ignition curves. 3.The number will be remembered after each press, and the last ignition curve will still be displayed after the power is off. 4.The ignition curve 1 imeans that the ignition angle is relatively low, and 9 means that the ignition angle is high.The ignition angle difference between each curve is 1-2 degrees. 5.According to different sites and road conditions, choose different ignition curves to match.

Review: it works perfectly - Starting is faster, throttle response is better, and the engine sounds much cleaner. Installation was super easy; I just disconnected the old one and connected this one. I've been using it with zero issues. For the price, it's totally worth it if you want to squeeze a little more performance without having to deal with complicated modifications. I recommend it.
Review: Great upgraded CDI - This Universal CDI Box is a solid upgrade for my 125cc atv. Installation was easy, and it fits perfectly on my Coleman 125cc without any modifications. I noticed an immediate improvement in acceleration and overall performance after adjusting the ignition curves andnl cycling through the modes. The high voltage output feels consistent, and the unit seems durable and well-made, with good heat dissipation. Compared to the stock CDI, the unit does take up more space but it is a good performer. Overall, it’s a reliable, high-performance replacement part that’s easy to install and makes a noticeable difference on the bike.

## Features

- FITMENT:The AC CDI Performance part is direct replacement for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike,Chinese 50c 70c 90cc 110cc 125cc ATV Quad Go Kart Pit Dirt Bike.Aftermarket cdi built to meet OEM specifications.
- DIGITAL ADJUSTABLE 9 IGNITION CURVES:The GY6 CDI adjustable box is alternating current(AC),with a 5-pin male plug connector,8V-25V adjustable.Voltage can be adjusted without batteries.Reset the ignition advance curve for better acceleration.
- BLOODY GREAT UPGRADED:This racing high performance part makes our motorcycle/bike a completely different animal.High voltage adjustment accuracy,low working current,high charging power.
- INPUT OVERHEAT PROTECTION & GOOD QUALITY:100% quality assurance tested.The racing CDI is made of plastic shell with metal circuit boards, provides good heat dissipation and extend service life.Durable and long lasting.
- EASY TO INSTALL:Easy to use and this COOLSTER CDI Box can increase in performance after getting settings dialed in.Works excellent.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DQ5KJHQ3 |
| Best Sellers Rank | #166,546 in Automotive ( See Top 100 in Automotive ) #18 in Powersports Ignition Computers |
| Brand | HANQIMOTO |
| Customer Reviews | 3.4 3.4 out of 5 stars (7) |
| Date First Available | December 11, 2024 |
| Exterior | Chrome |
| Item Weight | 9 ounces |
| Item model number | Coolster CDI |
| Manufacturer | HANQIMOTO |
| Manufacturer Part Number | Coolster CDI |
| Model | Coolster AC CDI |
| Package Dimensions | 5.43 x 4.33 x 1.38 inches |

## Images

![CDI Box,5 Pin AC CDI Racing,SSR 125 Pit Bike Parts,Digital Adjustable 9 Ignition Curves for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike,Racing CDI for 50c 125cc ATV Quad Go Kart - Image 1](https://m.media-amazon.com/images/I/71I1kJxNxdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ it works perfectly
*by C***A on October 11, 2025*

Starting is faster, throttle response is better, and the engine sounds much cleaner. Installation was super easy; I just disconnected the old one and connected this one. I've been using it with zero issues. For the price, it's totally worth it if you want to squeeze a little more performance without having to deal with complicated modifications. I recommend it.

### ⭐⭐⭐⭐ Great upgraded CDI
*by T***S on November 24, 2025*

This Universal CDI Box is a solid upgrade for my 125cc atv. Installation was easy, and it fits perfectly on my Coleman 125cc without any modifications. I noticed an immediate improvement in acceleration and overall performance after adjusting the ignition curves andnl cycling through the modes. The high voltage output feels consistent, and the unit seems durable and well-made, with good heat dissipation. Compared to the stock CDI, the unit does take up more space but it is a good performer. Overall, it’s a reliable, high-performance replacement part that’s easy to install and makes a noticeable difference on the bike.

### ⭐⭐⭐⭐⭐ easy to install
*by J***L on June 12, 2025*

works great

## Frequently Bought Together

- HANQIMOTO CDI Box,5 Pin AC CDI Racing,SSR 125 Pit Bike Parts,Digital Adjustable 9 Ignition Curves for COOLSTER 125cc 3125B 3125R 3125XR8 SSR Dirt Bike,Racing CDI for 50c 125cc ATV Quad Go Kart
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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-03*