Roadmaster StowMaster 501
#14 in Tow barFull review
For owners who want the bar to stay on the car and already have a crossbar baseplate. Others get more for the money elsewhere.
Amazon $960$960
3.2/5
For a car or small SUV behind a midsize motorhome. It is easy to handle, but rivals offer more capacity and longer warranties for the money.
- 8,500 lbCapacity
- 40 lbWeight
- 2 in receiverHitch
Check price at Amazon$1,036.64
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Light at 40 lb for a steel bar, so it is easy to lift on and off
- Arms lock on their own as you pull away, so one person can hook up
- Latches release on uneven ground
- Safety cables come in the box
Cons
- 8,500 lb rating is lower than similar priced bars from Demco and CURT
- Three year warranty, where several rivals give lifetime cover
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | BX7390 |
|---|---|
| Tow bar | |
| Type | Tow bar |
| Towing capacity | 8,500 lb |
| Hitch | 2 in receiver |
| Material | Steel |
| Self-aligning arms | Yes |
| Non-binding latches | Yes |
| Safety cables included | Yes |
| Brake included | No |
| Build | |
| Weight | 40 lb |
| Warranty | 3 years |
Alternatives in this type
NSA Ready Brute Elite II
#15 in Tow barFull review
For owners who want the bar and the brake in one purchase. Compare it with a plain bar plus a separate brake before you buy.
Amazon $1,599.99$1,599.99
Blue Ox Apollo BX7470
#17 in Tow barFull review
For a large motorhome towing a heavy truck or SUV. Nothing else here is rated higher, but the warranty is short for the price.
Amazon $1,489.19$1,489.19
Compare
Compare the Blue Ox Alpha BX7390 with any other tow bar →
More from Blue Ox: every Blue Ox product ranked.