---
product_id: 109144404
title: "sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike"
brand: "sthus"
price: "C$1495"
currency: NIO
in_stock: true
reviews_count: 13
url: https://www.desertcart.ni/products/109144404-sthus-silver-spring-loaded-chain-tensioner-for-49cc-50cc-66cc
store_origin: NI
region: Nicaragua
---

# Easy Installation Kit Spring Loaded Mechanism Compatible with 49cc-80cc sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike

**Brand:** sthus
**Price:** C$1495
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate Your Ride with Precision Tensioning!

## Quick Answers

- **What is this?** sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike by sthus
- **How much does it cost?** C$1495 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/109144404-sthus-silver-spring-loaded-chain-tensioner-for-49cc-50cc-66cc)

## Best For

- sthus enthusiasts

## Why This Product

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

## Key Features

- • **Perfect Fit:** Designed specifically for 49cc to 80cc engines, ensuring compatibility and performance.
- • **Built to Last:** Durable construction ensures longevity and reliability on every journey.
- • **Unleash Your Ride:** Transform your motorized bike experience with precision chain tensioning.
- • **Quick & Easy Setup:** Get back on the road in no time with our user-friendly installation kit.
- • **Smooth Performance:** Experience seamless rides with optimal chain tension for maximum efficiency.

## Overview

The sthus Silver Spring Loaded Chain Tensioner is engineered for 49cc, 50cc, 66cc, and 80cc motorized bikes, providing a reliable solution for maintaining optimal chain tension. This kit includes everything you need for a straightforward installation, ensuring your bike runs smoothly and efficiently.

## Description

sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike

## Features

- Fitment: Chain Tensioner Spring Loaded For 49cc 50cc 66cc 80cc Engine Motorized Bike     Package Includ: 1 Chain Tensioner Kit     motorized bike chain tensioner     80cc bike chain tensioner    ›See more product details

## Images

![sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike - Image 1](https://m.media-amazon.com/images/I/61iapcHrp-L.jpg)
![sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike - Image 2](https://m.media-amazon.com/images/I/51zoZJuPhQL.jpg)
![sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike - Image 3](https://m.media-amazon.com/images/I/51xRpUvgERL.jpg)
![sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike - Image 4](https://m.media-amazon.com/images/I/81HDdFmv5BL.jpg)
![sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike - Image 5](https://m.media-amazon.com/images/I/81sVgxiGAnL.jpg)

## Customer Reviews

### ⭐ 







  
  
    Looks great but has fatal flaws
  

*by M***E on Reviewed in the United States on April 5, 2019*

Upon first using this to tension my chain I was very pleased. It seemed like a much better solution to the stock tensioner. However, after only 3 rides the pulley nearly fell off twice and now has melted into a ball of plastic from tightening to prevent falling off the bike.

### ⭐⭐⭐⭐⭐ 







  
  
    Keeps that chain tight!!!
  

*by A***H on Reviewed in the United States on January 16, 2020*

Keeps your chain on your 66/80cc bike from jumping off, a dreaded occurrence, lol. I had a cheap stock tensioner bend and break a lower frame member (yikes!!!), and also had the chain jump off once on another motorized bike before I bought this tensioner. I've had zero problems since. I moved out of state for college and had to leave my motorbike behind, but i'm building a new one and so I just ordered another one of these tensioners. I would NOT feel safe on a 66/80cc 2 stroke motorbike without one of these. If you have a cruiser frame, the pedals should clear the allen bolts that hold this tensioner on, but if you have a mountain bike, you might or might not have to install wider pedal cranks, depending on the bike/brand.

### ⭐ 







  
  
    NOT RECOMMENDED BY THIS BUYER!!
  

*by S***T on Reviewed in the United States on March 16, 2020*

Returned immediately upon receiving. Would not fit without modifications I am not willing to make. The bolts stick out too far to allow the pedals to clear. Also very cheap materials and rough, sharp edges. I notice more and more that Amazon is starting to sell a lot of junk. I remember when I started buying on Amazon the quality of the products sold was much better. I DO NOT RECOMMEND THIS KIT!!!

## Frequently Bought Together

- Sthus Silver Spring loaded chain tensioner for 49cc 50cc 66cc 80cc Engine Motorized bike
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**Shop now:** [https://www.desertcart.ni/products/109144404-sthus-silver-spring-loaded-chain-tensioner-for-49cc-50cc-66cc](https://www.desertcart.ni/products/109144404-sthus-silver-spring-loaded-chain-tensioner-for-49cc-50cc-66cc)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-02*