Chassis Components› Roll Cages

Hard Dog

Sport M4 Roll Bar

$810.00

SKU: 910-880-MCC-CP

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Hard Dog Sport M4 is a roll bar designed for upgrades from stock ND equipment. It is constructed from heavy wall 1.75-inch diameter tubing and bolts to the six factory hoop anchor points. This roll bar replaces the aluminum factory cross brace and hoops.
Show original supplier description
The Hard Dog Sport M4 Roll Bar is a significant chassis enhancement, built from robust 1.75" diameter tubing with a .120" wall thickness and 3/16" mounting plates. It bolts directly to the six factory hoop anchor points, replacing the original aluminum cross brace and hoops for increased structural integrity. This M4 Sport model features additional support from two rearward braces, secured with grade 8 bolts and self-locking nuts. The main hoop of the M4 Sport bar utilizes the same structural attachments as the factory hoop, with options for double diagonal main hoop braces or no diagonals. The roll bar offers full seat travel and tilt, and the soft top version provides 3-1/4" more interior height than the factory metal hoops. Available finishes include a durable black powdercoat or polished stainless steel. Note that roll bars can reduce head clearance, and padding is highly recommended for street-driven vehicles. The M4 Sport roll bars are designed for the 2016-2025 Mazda MX-5 Miata ND series.
Vehicle Symptoms
  • Excessive body roll during cornering
  • Chassis flex noticeable on uneven roads
  • Lack of rollover protection for track days
  • Stock hoops feel flimsy or unsafe
  • Want to stiffen chassis for better handling
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHard Dog
Part Number910-880-MCC-CP
CategoryChassis Components
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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