---
product_id: 78710150
title: "BBR Tuning Motorized Bike Jackshaft Kit"
brand: "speed demon"
price: "143.35 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/78710150-bbr-tuning-motorized-bike-jackshaft-kit
store_origin: TN
region: Tunisia
---

# Universal Fitment High Speed Capability No Loss of Pedals BBR Tuning Motorized Bike Jackshaft Kit

**Brand:** speed demon
**Price:** 143.35 DT
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Ride: Unleash the Power of Speed!

## Quick Answers

- **What is this?** BBR Tuning Motorized Bike Jackshaft Kit by speed demon
- **How much does it cost?** 143.35 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/78710150-bbr-tuning-motorized-bike-jackshaft-kit)

## Best For

- speed demon enthusiasts

## Why This Product

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

## Key Features

- • **High-Speed Potential:** Unlock the thrill of dangerously high speeds with this powerful kit.
- • **Pedal Power Retained:** Enjoy the freedom of pedaling without losing engine power.
- • **Seamless Gear Shifting:** Easily switch gears with your existing setup for optimal performance.
- • **Versatile Compatibility:** Designed to fit most multi-speed bicycles with rear derailleurs.
- • **Expert Installation Recommended:** Best suited for experienced builders to ensure top performance.

## Overview

The BBR Tuning Motorized Bike Jackshaft Kit transforms your bicycle into a high-performance machine, allowing seamless gear shifting while retaining pedal functionality. Designed for experienced builders, this kit is compatible with most multi-speed bicycles and enables dangerously high speeds, making it a must-have for thrill-seekers.

## Description

Use your existing gears/dérailleur to maximize the performance and top speed of your motorized bike. This kit bolts onto your bike frame and motor and connects directly to the bikes gear system rather than using a separate sprocket.Warning: Installation is not for the faint of heart. This kit will allow your bike and bike engine kit to do dangerously high speeds! Install at your own risk. Recommended for advanced users. Kit does not come with instructions.

## Features

- CHANGE GEARS EASILY: The BBR Tuning Motorized Bike Jackshaft Kit enables you to use your existing gears, derailer and shifter on your handlebar to shift the gears your engine is powering. This allows you to have a wide range of gear ratios for your engine from low end which makes taking off easy and top end gears that help when cruising at high speeds so that your engine is not running at a high rpm for extended amounts of time.
- NO LOSS OF PEDALS: Even though your engine is now powering your bicycle chain and sprocket you can still ride your bike just like normal. Your crank's sprocket features a 1 way bearing so that it does not lose function for pedaling like a regular bike.
- EXPERIENCE BUILDERS RECOMMENDED: This is difficult to install and we highly recommend experience builders install this kit. Since all bikes are different this kit does not include instructions. *NOTE: This kit will allow your bicycle to reach dangerously high speeds, make sure your bike is best suited for high speed use.
- UNIVERSAL FITMENT: This kit is designed to work with most bicycle engine kits installed on bicycle with multiple speeds and a rear derailer. Without a rear derailer you will not be able to shift gear.
- PACKAGE INCLUDES: 1x BBR Tuning Gas Powered Motorized Bicycle Jack Shaft Complete Installation Kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Speed Demon |
| Brand | Speed Demon |
| Item Weight | 12 pounds |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | SD-JKSHAFT |

## Images

![BBR Tuning Motorized Bike Jackshaft Kit - Image 1](https://m.media-amazon.com/images/I/713vXbBN0wL.jpg)

## Questions & Answers

**Q: Do shift kits work with belt drive bikes ?**
A: I suppose you could, I have seen no kit for it. 
But people make all kinds of things that don't come in kits.

**Q: Does this kit work with the 66cc bullet train motor with the automatic?**
A: Dude u will have your hands full with this kit don't waste your money

**Q: Is one side of the bottom bracket shaft threaded to hold the bearing retainers in place?**
A: Threaded retainer cup. Not universal. Very difficult to align everything. 
Uses the threads from the choosen bikes bottom bracket

**Q: Does it fit motor with electric start and centrifuge clutch?**
A: No an you will need some welding skill to really get this to work. There is an updated version that is much more user friendly.

## Customer Reviews

### ⭐ i believe the kit was put together to quickly and carelessly the chainring was cut the same not changed the lay. the key hole w
*by C***D on November 16, 2014*

First off I'm not pleased with the kit. Because all the parts were not there. Had to go out of my way to find everything else. And still no luck. So I ordered one from sick bike parts .Com and everything was there . I payed204.00 the first time . For a 3/4 kit. Paid 150.00 and got everything this time and the kit looks better as well. So to all you oUT there thinking about buying a jackshaft kit. Please by from Sbp.com

### ⭐ Worthless kit
*by A***R on July 10, 2021*

I installed this kit on my bicycle now I can't even ride it because this kit is crappie. I youtube jackshaft kit by BBR and everyone had negative feedback it was a waste of money.

### ⭐⭐⭐⭐⭐ Upgrade bearings on jack shaft for 4 stroke
*by A***T on September 27, 2020*

Work great bearing load is inadequate cheap bearings recommend up grading bearings if used w 4 stroke applications

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**Shop now:** [https://www.desertcart.tn/products/78710150-bbr-tuning-motorized-bike-jackshaft-kit](https://www.desertcart.tn/products/78710150-bbr-tuning-motorized-bike-jackshaft-kit)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-05*