---
product_id: 153971115
title: "CNCMOTOK Heavy Duty Chain Roller Tensioner w/Spring 110cc 125cc 140cc Dirt Pit Pro Dirt Bike 4 wheeler Black"
brand: "cncmotok"
price: "€ 19.53"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/153971115-cncmotok-heavy-duty-chain-roller-tensioner-w-spring-110cc-125cc
store_origin: FR
region: France
---

# 3.1mm thick metal 15mm inner diameter 5.3 ounces weight CNCMOTOK Heavy Duty Chain Roller Tensioner w/Spring 110cc 125cc 140cc Dirt Pit Pro Dirt Bike 4 wheeler Black

**Brand:** cncmotok
**Price:** € 19.53
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Ride with Unstoppable Strength!

## Quick Answers

- **What is this?** CNCMOTOK Heavy Duty Chain Roller Tensioner w/Spring 110cc 125cc 140cc Dirt Pit Pro Dirt Bike 4 wheeler Black by cncmotok
- **How much does it cost?** € 19.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/153971115-cncmotok-heavy-duty-chain-roller-tensioner-w-spring-110cc-125cc)

## Best For

- cncmotok enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit:** Designed with a 15mm inner diameter for a perfect fit on 110cc to 140cc dirt bikes.
- • **Complete Package:** Includes everything you need: 2 rollers, 1 bracket, 1 clip spring, 1 screw, and 1 washer.
- • **Smooth Performance:** Seamless steel bushing ensures effortless rotation and extended lifespan.
- • **Lightweight Champion:** Weighing only 5.3 ounces, it enhances performance without adding bulk.
- • **Unmatched Durability:** Engineered with a robust 3.1mm thick metal bracket for superior strength.

## Overview

The Heavy Duty Chain Roller Tensioner is designed for 110cc to 140cc dirt bikes and ATVs, featuring a robust 3.1mm thick metal bracket, seamless steel bushing for smooth operation, and a complete installation package. Weighing just 5.3 ounces, it combines durability with lightweight performance.

## Description

Heavy Duty Chain Roller Tensioner w/Spring 110cc 125cc 140cc Dirt Pit Pro Dirt Bike 4 wheeler Black

## Features

- Heavy duty chain roller tensioner with upgraded spring, thicker wire and longer travel
- The bracket use 3.1mm thick metal, stronger built than other tensioners.
- Seamless steel bushing brings smooth rotoring and longer life.
- 15mm inner diameter mounting bushing size, please see photos for detail measurements.
- package includs:2 x rollers,1 x bracket, 1 x clip spring, 1 x screw, 1 x washer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CNCMOTOK |
| Brand | CNCMOTOK |
| Item Weight | 5.3 ounces |
| Package Dimensions | 4.37 x 3.19 x 2.28 inches |
| Manufacturer Part Number | CNCMOTOK |

## Images

![CNCMOTOK Heavy Duty Chain Roller Tensioner w/Spring 110cc 125cc 140cc Dirt Pit Pro Dirt Bike 4 wheeler Black - Image 1](https://m.media-amazon.com/images/I/61xsm3fG0cL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Does this work on a mini z?**
A: As far as I understand a mini-z is a remote controlled car. 
This item is much too large. More for chain tensioner on a small dirt bike.

**Q: Is the inside hole diameter of the rollers 1/2 inch?**
A: The hole size is actually 15mm or 0.5905512 inches ..  Little bit larger than a half inch.  If you're going to use a bolt I would stay with the metric size to get the proper fit.

**Q: Where do you find a 15mm bolt to install it?**
A: The bolt in Home Depot.

**Q: Will this fit the Mountopz Coolster 125?**
A: I have no idea.  We purchased it to retro-fit a bike with a motor added.   Sorry!

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**Shop now:** [https://www.desertcart.fr/products/153971115-cncmotok-heavy-duty-chain-roller-tensioner-w-spring-110cc-125cc](https://www.desertcart.fr/products/153971115-cncmotok-heavy-duty-chain-roller-tensioner-w-spring-110cc-125cc)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-28*