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Swagman Bike Frame Adapter Bar - Large - 25-1/2" - 35" - 35 lbs
(83 reviews)
Price: $48.99
In Stock
Swagman
Swagman Bike Frame Adapter Bar - Large - 25-1/2" - 35" - 35 lbs
Part Number: S57FR
In Stock
$48.99
Retail:$67.91
You Save: 28%
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- Reviews (83)
- Q & A (0)
- Photos
Swagman Accessories and Parts - S57FR
- Hitch Bike Rack
- Spare Tire Bike Racks
- Trunk Bike Racks
- Adapter Bar
- Frame
- Swagman
- 25 - 31 Inch Long
Adapter bar lets you carry a bike with a 25-1/2" - 35" seat-to-handlebar distance on your hanging-style or platform-style bike rack. It's perfect for women's, kid's, and alternate frame bikes.
Features:
- Adapter bar lets you carry a bike with a women's, kid's, or alternate frame horizontally on your hanging bike rack
- Also lets you carry your women's or kid's bike on a frame-mount platform-style bike rack
- Spring-loaded tube extends to ensure a snug fit on most bikes
- Easy push-button hooks clamp around your bike's seat post and handlebar's stem post
- Clamps open outward to avoid interference with seat and handlebars during installation
- Vinyl coating helps prevent scratches on your bike's paint
- Sturdy steel construction with black powder coat finish is durable and rust resistant
Specs:
- Carrying capacity: 1 bike
- Weight capacity: 35 lbs
- Adjustable length (inside clamp to inside clamp): 25-1/2" - 35"
- Maximum handlebar stem post and seat post diameter: 2" wide
- Weight: 3.5 lbs
- Limited lifetime warranty
Note: The adapter bar weight limit is 35 lbs when used on a hanging bike rack.
Bike Frame Adapter Bar
This adapter bar allows you to carry a bike with a sloping top tube or step-through frame on your bike rack. It fits between the seat post and handlebar stem post of your bike to ensure level transport on your hanging-style bike rack. It also creates a top tube so you can carry your bike on frame-mount platform-style rack. The spring-loaded bar telescopes to fit multiple frame sizes, and it can be used with no-rise bike stems.
Easy Installation
To install the adapter bar simply open the hooks with the integrated release buttons, wrap one hook around your handlebar stem post and the other around your seat post, and close the hooks. The hooks open outward - parallel with the bar - to help you avoid interference from the seat and handlebars during installation. The bar has red "Up" indicators on each end to help prevent incorrect installation. The hooks have a vinyl coating that won't scratch or scuff your bikes' paint.
63999 Swagman Cruiser Adapter Bar for Electric, Step Through, and Cruiser Bike Frames
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
- Wrong item was ordered
Ratings & Reviews
4.6
83 reviews
by:
Bob
07/20/2026
The initial inside/ outside placement is a little tricky! Also the “tracks” don’t seem to be 100% secure. Despite it’s weight, is easy to mount and load bikes!
by:
Dorr
07/22/2022
The adapter bar is probably fine if you have to have it-the quality of the part seems fine. Don’t buy it from etrailer though if you think you might need to return it. Unlike [online stores], they don’t accept returns on bike racks if you have assembled the rack, so they may well have the same policy for this adapter. I bought the HR1500 bike rack with these adapter bars, but the right solution would have been the HR1700. They won’t allow exchanges or returns.
by:
Michael
09/16/2022
I would advise anyone if they are considering ordering anything from etrailer to make sure it's what you want because if you have to return it you have to pay for shipping and what is left you will be waiting for a long time before you get it back! be careful!
by:
Richard
07/30/2022
Works as advertised. We have two different types of Fat Tire Ebikes and both are step thru style. Perfect for putting on and clamping them down on the bike rack for travel. Great accessory.
by:
Duncan
07/22/2023
would like it lockable, so I didn't need add'l lock to my bike rack other than the holddown that loops over the bar to hold the bike in...
by:
Nick F
09/03/2022
I've needed this bar adapter for my trek ebike "step-through" for my particular bike rack which hooks onto the bikes. It has worked just fine in providing a way for the bike to be secured onto the rack.
by:
Thomas
08/16/2022
I used it once to transport my wife’s bike in for service and it chipped the paint on the bars of the bike. Need some sort of rubber protectors at each end to protect the bike.
by:
Russell
09/28/2022
These fit perfectly on our Lectric eBikes and helped ensure they are secure to our swagman eBike approved bike rack.
by:
Susan
07/06/2022
This bar is quick and easy to use. It has flexibility to fit any bike and is plenty strong. It allows us to attach our step through bikes to our rack. Very happy with the purchase.
by:
Tim
09/01/2022
Seems to be too long for my Heybike cityscape but we seem to have it secured to the rack.
by:
Ed
08/12/2022
Been using it quite a bit and am happy with the e bike rack. Very well built and functional.
by:
Joseph
08/15/2022
Works great with the Swagman E-Spec Bike Rack and the step through Letric bike.
by:
David
08/03/2022
I bought this item but found something more suitable for my specific application. Called to return and Nicole was great. No hassle return. Will continue to shop with etrailer in the future.
by:
Anthony
07/15/2022
This is a great all around product that allows almost any bike to adapt to the bike rack.
by:
Betty
03/06/2022
The bar was easy to install and worked exactly as it was designed. Our bikes will be quite stable on our bike rack.
by:
John
02/15/2022
Speed and service excellent. Box came a bit banged up but no damage to item so very happy with etrailer.
by:
Leonard
08/04/2025
Works fine
by:
Steve
07/21/2023
Returned this item because it
Turned out I didn’t need it for our Lecteic step thru bikes.
Turned out I didn’t need it for our Lecteic step thru bikes.
by:
William
07/25/2022
Good quality and heavy duty allowing us to load two E-bikes.
by:
Mark
08/11/2022
This is a better bar than the cheap one I bought prior to this purchase, but this bar has poor figment and the jury is out on how long it will last.
by:
Paul
05/07/2021
I placed the order and then it was quiet. I called and was told Aug but someone checked and found me a piece for the rack and I am all set. A call or e-mail would have been helpful.
by:
Sandy
03/22/2022
It works perfectly and is very easy to use.
by:
Dave
04/15/2022
looks like they will work perfect but haven't had a chance to use them yet
by:
Edward
06/26/2022
great product does what it suppose to. Appears well made.
by:
Christopher
06/07/2023
Christopher
6/8/2024
Excellent. Best bike rack I ever had
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Russell
9/29/2023
The issue have with them is that the part that connects to the bike handlebar stem and the seat stem rubs against the bike and has scratches the paint off, I have to wrap the ends with packing foam to keep them from damaging the bikes. My bikes are Lectric 1.0 foldable bikes. they are not folded on the rack, but they are needed so that the locking mechanism on the bike rack has a position to lock onto the bike.