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M1 Hard Dog Hard Core roll bar

Double diagonal version installed
M1 Hard Dog Hard Core roll bar
The tallest roll bar we offer that fits under the soft top.

Made in the USA

This item will be dropshipped from the manufacturer.


1.75" 0.120" wall DOM tubing. SCCA Solo I compliant, although you'll still have to sit low enough in the car to clear any helmet clearance limitations. In order to get this bar tall, it has to sit fairly far forward so we prefer the Sport for street use.

Includes a harness bar (except for the X brace model). However, the bar does interfere with a glass rear window. If you want to run a glass window, see our "M2" version. The M2 version does not include a harness bar, but includes harness tabs instead.

Interferes with the side latches on a hardtop, so you'll either have to bolt the top on or run without the side latches. No clearance problems for the soft top.

Available with single or double diagonals. Also available with an X brace for maximum rear visibility, or with no diagonals at all - the latter is not SCCO Solo I compliant.

Black powdercoat. Fits NA models only.

Shipping note: These bars will be drop-shipped from the manufacturer. These bars are usually kept in stock. If not, depending on where the bars are in the production process, it could take approximately 2-6 weeks for delivery. If you would like one shipped outside the US, please contact Hard Dog Fabrication directly.

Additional Information

Additional Information

Part number 20-27000
TÜV approval available Yes
Fits: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
Manufacturer Hard Dog
Flyin' Miata exclusive No
Fits Exocet? No
Proposition 65 Warning: Cancer and reproductive harm
California emissions No

Customer Reviews 2 item(s)

Not what I expected.
While the quality of the roll bar is fine, fitting it in the car is very difficult. Had to cut out sections of metal, etc. The instructions are poor. All of that to find out that it doesn't really work with my Sparco seats. Took it back out and will be selling it for a loss.
Review by AJ / (Posted on 10/14/2019)
Overall an amazing product
It's a great product though the installation instructions on the Bethania Garage website, (manufacturer of the roll bar), are kind of vague. I had to kind of go in blind to install it. It's a long process but I did get it done in about 4 hours. Loved the install and the product overall. It is a high quality piece and is a lot lighter than I expected.
Review by John / (Posted on 3/6/2019)
Instructions for this part are not currently available online.

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