Bethania Garage Inc. & Hard Dog Fabrication Hard Dog Fabrication Logo
The Hard Dog Cage


The Hard Dog Cages are designed for use in SCCA Spec Miata and Showroom Stock classes, made with materials and hardware that exceed minimal guidelines.
Custom street configurations and weld together roll cage kits available.

Contact Us for consultation about your specific needs and pricing information.



  • Not sure what cage configuration you need? Contact Us!

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Features include:

  • Main hoop designed for full interior height and width

  • Allows full use of hard top and soft tops

  • Black powdercoat finish

  • 1.5" o.d. x .120" wall 1026 dom carbon steel tubing

  • Diagonal Brace in the main hoop plane

  • Seat back bar

  • Spec Miata Version w/ two door bars per side w/ two connector reinforcements for 1990 - 2005 w/ gutted doors or 1990 - 1997 w/ stock door panels

  • Complete hardware kit w/ grade 8 bolts, self locking huts and 3/16" back-up plates

Cage Accessories:

Item/Number Description Price

Spec Miata Cage
CG20SM Spec Miata - 2 Door Bars & 2 Connectors per side $1175.00

Street Miata Cage
M1 CG20 Street - 1 Door Bar per side 1990 - 1997 $970.00
M2 CG20 Street - 1 Door Bar per side 1999 - 2005 $1045.00

Add On's for Cages or existing Sport or Hard Core bars
FR20 Add-on Front Section .120 Wall* $505.00
CD Cage Diagonal (required for SPEC Miata)* $50.00
SBB Seat Back Bars (required for SPEC Miata)* $125.00
DB Additional Door Bars* $65.00 each
CN Additional Door Bar Connectors* $25.00 each
PB Petty Bar - Forward Main Hoop Brace* $110.00
XB Rearward X Brace Diagonals $140.00

Showroom Stock Cage shown before Powdercoating
Street Cage
shown before Powdercoating.
Click to Enlarge Image

Showroom Stock Cage with one additional door bar
Street Cage w/
one additional door bar
for stock door w/ panel.
Click to Enlarge Image

Hard Dog Cage
Spec Miata Cage w/
door bars
for gutted door
and door bar connectors.
Click to Enlarge Image

Hard Core Rear Section
Hard Core Bar w/
added front section.
Click to Enlarge Image

*Welding Required

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 April 13, 2017 9:24 AM