Demco Air Force One
#3 in BrakeFull review
For diesel pushers towing one car. It is a well rounded installed brake for air brake coaches.
Amazon $1,323.81$1,323.81
The Demco Air Force One is the better tow bar overall, rated 4.2 to 4.1. The Demco Air Force One leads on weight or install and price. The Roadmaster Even Brake 9400 wins on warranty. The Demco Air Force One costs $357.89 less ($1,323.81 vs $1,681.70).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Roadmaster Even Brake 9400
#4 in BrakeFull review
For owners who want proportional braking and may switch towed cars. It is the most expensive way to get there.
Amazon $1,681.70$1,681.70
Which should you buy?
- Choose the Demco Air Force One for weight or install (stays installed in the car vs portable, set up each trip) and price ($1,323.81 vs $1,681.70).
- Choose the Roadmaster Even Brake 9400 for warranty (limited lifetime warranty vs 5-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every brake tow bar; a clear win is highlighted. How we rank explains each one.
| Factor weight | Demco Air Force One | Roadmaster Even Brake 9400 |
|---|---|---|
| Overall rating | 4.2/5 | 4.1/5 |
| Price 25% | 52 $1,323.81 | 22 $1,681.70 |
| Capacity or braking 20% | 100 proportional braking | 100 proportional braking |
| Weight or install 15% | 100 stays installed in the car | 50 portable, set up each trip |
| Features 20% | 100 breakaway included, motorhome monitor included | 100 breakaway included, motorhome monitor included |
| Warranty 20% | 44 5-year warranty | 100 limited lifetime warranty |
Specifications
| Demco Air Force One | Roadmaster Even Brake 9400 | |
|---|---|---|
| Tow bar | ||
| Type | Supplemental brake | Supplemental brake |
| Braking | ||
| Proportional | Yes | Yes |
| Install | Installed | Portable |
| Breakaway included | Yes | Yes |
| Motorhome monitor | Yes | Yes |
| Motorhome brakes | Air brakes | - |
| Build | ||
| Warranty | 5 years | Limited lifetime |