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BBR Tuning Motorized Bike Jackshaft Kit Item# BBR-JKSHAFT

OUR PRICE: $189.95
List Price: $297.95

Availability: In stock


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.

*Note: These JackShaft kits have been updated to include thinner, non-dished sprockets for better shifting, a chrome colored sprocket guard for a better look over the old clear plastic one, and does not include a rear wheel bicycle hub.

Best Price Guarantee

BikeBerry.com is committed to providing our customers with the best price available online! At BikeBerry.com we work hard to offer the most competitive pricing available, but if you find a lower price online, let us know and we'll match it! In fact, if you find a lower price within 30 days of your original purchase date, we'll refund you the difference.

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Best Price Guarantee Terms and Conditions:

Item must be the identical model from an authorized U.S. dealer. Specifically, the product must have the same U.S. manufacturer's warranty, model number, and contain the same components. BikeBerry.com will price match only in-stock products.

BikeBerry.com reserves the right to verify another online company's product availability and price before issuing a price match.

BikeBerry.com does not match auction websites or refurbished products.

The Best Price Guarantee does not apply to obvious pricing errors or clearance/close-out items.

Best Price Guarantee applies to the total purchase price of the item. Total purchase price includes shipping, taxes, or other discounts.

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Customer Reviews

Looks Good! Review by Crankbent
The kit sounds good. The price is right. Can I put one on my Surrey Pugsly? (Posted on 1/25/2018)
Sweet! Review by Big Daug
I just got my Jackshaft kit and I only had a small issue with missing set screws for my new sprockets. Other than that, this assembly is Sweet! What an awesome experience. If anyone needs help, go to youtube.com. I had this on my bike and running in a couple hours. Man, is my bike fast! Thanks Guys! (Posted on 11/2/2013)

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Customers Q & A

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Q: I need a jackshaft kit for a 49 cc 4 stroke, I have seen that I might need a shaft replacement...will this kit work?

Posted On: 2/3/2019 By: John

A: Our BBR Tuning Motorized Bike Jackshaft Kit is specifically designed for a 2 stroke engine kit.
Q: Will this jackshaft kit work on a 5 speed beach cruiser with a 1 inch seat post?

Posted On: 5/2/2014 By: ed cochran

A: Yes, our BBR Tuning Motorized Bike Jackshaft Kit is compatible with a 5 speed bicycle with a 1 inch seat post.

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