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
3.8/5
For owners who keep one towed car and want a brake they never handle. Proportional systems brake more smoothly.
- NoProportional
- InstalledInstall
Check price at Amazon$1,380
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Stays hidden in the car, so there is nothing to set up before each tow
- Trickle charges the car battery at up to 2 A while towing
- Breakaway and a motorhome monitor come in the box
- Lifetime warranty when bought from an authorized dealer
Cons
- Progressive, not proportional, so braking force does not follow the motorhome exactly
- Needs a permanent install in each car
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 | 8700 |
|---|---|
| Tow bar | |
| Type | Supplemental brake |
| Braking | |
| Proportional | No |
| Install | Installed |
| Breakaway included | Yes |
| Motorhome monitor | Yes |
| Build | |
| Warranty | Limited lifetime |
Alternatives in this type
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 $1,930$1,930
CURT RVibrake 4 52202
#6 in BrakeFull review
For owners who want a portable brake with a wireless monitor. Check that its braking style suits you before paying this much.
Amazon $1,595.95$1,595.95
Compare
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