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Hard Dog Ace

Price: From $415.00 to $505.00
Manufacturer: Hard Dog Fabrication
Flat Rate Shipping is $125.00 in Contiguous U.S.

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Add Harness Bar*
Optional custom-formed high-density padding / cover*
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Hard Dog Ace

Black Powdercoat
1990-2005 Miata

The Ace is Hard Dog's response to popular demand for a traditional roll bar designed with more rearward placement for better head clearance that doesn't interfere with the stock seat belt.
The flexibility of this design allows us to offer this bar in many configurations to include: harness bar and one or two diagonals and side or top main hoop rear bracing. The diagonals can be located in the main hoop or between the rearward braces. Or if you prefer, no diagonal or harness bar at all. Fits all 1990-2005 Miatas, compatible with hard tops and plastic rear window soft tops, aftermarket or OEM glass rear window convertible tops.**
The Ace integrates with the unibody framework inside the rear wheel wells and seat belt towers creating a structure stronger than the individual component parts using much the same mounting system as our Deuce model.

This is the bar we recommend for a Miata that sees street use and for autocross or track days. 

**See Roll Bar FAQ for more details about glass window soft top fitment. 

Hard Dog Ace Black
Ace Schematic

Features include:

  • Allows full seat travel and tilt
    Complete use of hard and soft top
  • Compatible with 1990 - 2005 Miatas with original equipment or most after market plastic or glass rear windows*
  • Durable black powdercoat finish
  • Constructed of highest quality 1.75 X .120 inch 1026 alloy drawn over mandrel tubing
  • 8 structural attachment points w/ laser cut 3/16" mounting and backup plates
  • Complete hardware kit w/ grade 8 bolts
  • Not compatible with factory windblocker

Roll Bar Accessories:

  • Stitched vinyl or leather covers w/ our custom formed high density padding by BSCI
  • SFI approved high density and traditional foam padding


Use measurements above to measure fightment in relation to driver. 
The Sport and Hard Core Hardtop are slightly shorter and sit farther back than the Hard Core.  The Ace is slightly shorter still but sits the farthest back. 

The biggest question we get regarding this roll bar is how is it different than the M1 and M2 roll bars. The Ace roll bar sits farther back and slightly lower for soft top clearance.  It's mounted between the seat belt towers as opposed to the Hard Core, Hard Core Hardtop and Sport bars which mount in front of the seatbelt towers.  The ACE also doesn't require relocating the seatbelt shoulder mounting point so it will not interfere with seatbelt retraction.

NOTE: This item has flat rate shipping. All Hard Dog products must be ordered individually for our website to calculate shipping.



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