Miata Bolt-in Door Bar

Bethania Garage Inc. & Hard Dog Fabrication

Bolt-In Door Bars

The Bolt-In Door Bars are designed specifically to stiffen the chassis of your Miata. A torsionally stiff chassis will keep a more even load on all wheels to improve traction. The stiffer a chassis, the more likely the vehicle is to have even weight distribution on all tires which is favorable to cornering and superior handling.

The Bolt-In Door Bars are easily installed in all '90-2005 model Miatas in conjunction with any version Hard Dog Roll Bar or even if no roll bar has been installed with minimal interference to normal use of the car.

Additional rear back up plates are required if the door bars are to be used without a roll bar or with our Ace, Deuce or Hard Bar models.

Not sure which Roll Bar is right for you? Contact Us!

Protect your bean. Custom formed high density padding is now available for Hard Dog Roll Bars!

Features include:

Hardware included for installation with our Hard Core, Sport or Xtreme Roll Bars
Durable Black Powdercoat finish
Constructed of high quality 1.5" diam x .120" wall DOM tubing

Item/ Number	Description	Price
Bolt-In Door Bars (sold as pair) - Contiguous 48 U.S. States Shipping $175.00
ADB	Bolt-in Door Bars for '90-'97 Miata / MX-5	$450.00
BDB	Bolt-in Door Bars for '99 - '05 Miata / MX-5	$450.00
BU1	Rear Back-up Plates w/ mounting hardware as required to install door bars without a roll bar or in conjunction with Ace, Deuce or Hard Bar models	$30.00 per pair

M2 Bolt-in Door Bar
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Door Bar Plate
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WARNING: This article is sold without warranty, expressed or implied. No warranty is made to this product's ability to protect the user from any injury or death. The user assumes that risk.

Updated Nov 1, 2025