---
product_id: 66140963
title: "dolphin1986 New Shifter Kit/Motorized Bike Jackshaft Kit - 66/80CC Gas Motorized Bicycle"
brand: "dolphin1986"
price: "FREE"
currency: VND
in_stock: false
reviews_count: 6
url: https://www.desertcart.vn/products/66140963-dolphin1986-new-shifter-kit-motorized-bike-jackshaft-kit-66-80cc
store_origin: VN
region: Vietnam
---

# dolphin1986 New Shifter Kit/Motorized Bike Jackshaft Kit - 66/80CC Gas Motorized Bicycle

**Brand:** dolphin1986
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** dolphin1986 New Shifter Kit/Motorized Bike Jackshaft Kit - 66/80CC Gas Motorized Bicycle by dolphin1986
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/66140963-dolphin1986-new-shifter-kit-motorized-bike-jackshaft-kit-66-80cc)

## Best For

- dolphin1986 enthusiasts

## Why This Product

- Trusted dolphin1986 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Please note: compatible for regular bike, not for big fat tire bicycle and some other unregular bicycles  motorized bike with jackshat kit installed on it gets less noise, can ride bike as normal bike too

## Features

- Note: The sprocket cover is plastic material， compatible for regular bike, not for big fat tire bicycle and some other unregular bicycles
- New Shifter Kit/Motorized Bike Jackshaft Kit - 66/80CC Gas Motorized Bicycle
- Manual excluded.
- Less noise，ride motorized bike as normal bike with pedal
- Please note: there is no user manual shipped in the package, if you have any problem, please contact Customer Service, we will offer a installation video. This product Comes with 12months Warranty. Any questions,please contact us firstly !We can help you solve the problem until you are satisfied.

## Images

![dolphin1986 New Shifter Kit/Motorized Bike Jackshaft Kit - 66/80CC Gas Motorized Bicycle - Image 1](https://m.media-amazon.com/images/I/51MS-0G2p+L.jpg)
![dolphin1986 New Shifter Kit/Motorized Bike Jackshaft Kit - 66/80CC Gas Motorized Bicycle - Image 2](https://m.media-amazon.com/images/I/71nsFU9kKoL.jpg)

## Customer Reviews

### ⭐ 







  
  
    I will not recommend or buy this ever again
  

*by J***E on Reviewed in the United States on August 27, 2018*

I had to drill out the holes on both mounting plates, because the short chain from the engine to the jackshaft was so tight it wouldn’t even move. And the sprockets are too thick to use a mtb chain you need a bmx bike chain. Also the bolts they included to mount the side plates were too short. And the one way bearing for the crank gave out the first time I tried to ride it. If I could give negative stars I would.

### ⭐⭐ 







  
  
    Bad
  

*by J***E on Reviewed in the United States on February 22, 2019*

Unless your willing to do some heavy fabrication this will not work unless you get lucky mine came with missing parts and the chain was too short and some parts wouldn’t fit so I had to grind some stuff and it still didn’t work

### ⭐⭐⭐ 







  
  
    Takes a lot of patience and work
  

*by B***D on Reviewed in the United States on November 30, 2018*

Takes a lot of modification i recommend files and hardware 4 flange bolts M6-1.0×35mm, 2 socket cap screws M6-1.0×35, and thread lock also you might hav to make a chain tensioner

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**Shop now:** [https://www.desertcart.vn/products/66140963-dolphin1986-new-shifter-kit-motorized-bike-jackshaft-kit-66-80cc](https://www.desertcart.vn/products/66140963-dolphin1986-new-shifter-kit-motorized-bike-jackshaft-kit-66-80cc)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-18*