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Race-Ready Bite For The ND2 Miata
The ACT ZM14-HDG6 pairs a Heavy Duty pressure plate with a 6-pad sprung race disc, built for ND2 Miata owners who want harsher, more direct engagement without giving up a sprung hub for street driveability. The ZM14-HDG6 kit ships complete with a chromoly XACT Streetlite flywheel, so the whole rotating assembly bolts in together and stays balanced. ACT's 6-pad race disc uses smaller, segmented friction pads instead of a full-face disc, which sheds heat faster and holds up better to repeated high-rpm clutch drops than a stock organic disc. Combined with the Heavy Duty pressure plate's increased clamp load, the ZM14-HDG6 is built for autocross, track days, and drag applications on the naturally aspirated or lightly modified ND2 platform.
Key Features
- ZM14-HDG6 pairs a Heavy Duty pressure plate with a 6-pad sprung race disc for faster, harsher engagement
- Segmented 6-pad disc design sheds heat faster than a full-face disc during repeated hard launches
- Includes a chromoly XACT Streetlite flywheel matched to the ZM14-HDG6 kit
- Sprung hub reduces driveline shock compared to a rigid race disc
- Built for autocross, track, and drag use on the ND2 Miata platform
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2020 | Mazda | MX-5 Miata | 100th Anniversary SE |
| 2025 | Mazda | MX-5 Miata | 35th Anniversary |
| 2019-2025 | Mazda | MX-5 Miata | Club |
| 2019-2025 | Mazda | MX-5 Miata | Grand Touring |
| 2020 | Mazda | MX-5 Miata | RF 100th Anniversary SE |
| 2019-2025 | Mazda | MX-5 Miata | RF Club |
| 2019-2025 | Mazda | MX-5 Miata | RF Grand Touring |
| 2019-2025 | Mazda | MX-5 Miata | Sport |
Specifications
| Detail | Value |
|---|---|
| MPN | ZM14-HDG6 |
| Design | Heavy Duty pressure plate, 6-pad sprung race disc |
| Hub Type | Sprung |
| Flywheel Included | Chromoly XACT Streetlite |
| Recommended Use | Autocross, track, drag |
| Platform | ND2 Miata |
What's Included
- 1x ZM14-HDG6 Heavy Duty pressure plate with 6-pad sprung race disc
- 1x Chromoly XACT Streetlite flywheel
- Clutch hardware, release bearing, pilot bearing, and alignment tool
About ACT
Advanced Clutch Technology (ACT) builds the ZM14-HDG6 as part of its Race Series lineup for the ND2 Miata, combining a Heavy Duty pressure plate with a segmented race disc so drivers get a firmer, more direct clutch feel for competition use while keeping a sprung hub for reduced driveline shock.
Related Parts
- ACT 07-11 Mazdaspeed 3 Performance Street Sprung Disc
- ACT 2006 Mazda 6 Perf Street Sprung Disc
FAQ
What is the ZM14-HDG6?The ZM14-HDG6 is an ACT Heavy Duty pressure plate paired with a 6-pad sprung race disc and matched chromoly flywheel, built for the ND2 Mazda MX-5 Miata for autocross, track, and drag use.
What is a 6-pad clutch disc?A 6-pad clutch disc uses six smaller, segmented friction pads instead of one continuous friction ring, which helps the disc shed heat faster and resist glazing during repeated hard clutch engagements.
Does the ZM14-HDG6 include a flywheel?Yes, the ZM14-HDG6 kit includes a chromoly XACT Streetlite flywheel matched to the clutch assembly, along with hardware, release bearing, pilot bearing, and alignment tool.
Is the ZM14-HDG6 street driveable?The ZM14-HDG6 uses a sprung hub to reduce driveline shock, but its Heavy Duty clamp load and 6-pad race disc are firmer than a stock clutch and are best suited to drivers prioritizing track and competition performance.
Which Miata trims does the ZM14-HDG6 fit?The ZM14-HDG6 fits ND2-generation MX-5 Miata trims including Sport, Club, Grand Touring, RF Club, RF Grand Touring, and the limited-run 100th and 35th Anniversary Editions.
What is the difference between the ZM14-HDG6 and the ZM15-HDSD?The ZM14-HDG6 uses a segmented 6-pad race disc for firmer, faster engagement, while the ZM15-HDSD uses a rigid full-face disc positioned for heavy duty street and performance use.
Does the ZM14-HDG6 fit an NA or NB Miata?No, the ZM14-HDG6 is engineered for the ND2-generation Miata's clutch and flywheel dimensions and is not listed as a fit for earlier NA or NB chassis.
Is the ZM14-HDG6 suitable for a daily driver?The ZM14-HDG6 is built primarily for autocross, track, and drag applications, so drivers using their Miata as a daily driver may find its clamp load and engagement firmer than a street-oriented clutch kit.
Install Instructions
- Remove the transmission from the vehicle following the factory service procedure for the ND2 Miata.
- Remove the factory flywheel, pressure plate, and clutch disc from the crankshaft flange.
- Install the ZM14-HDG6 chromoly XACT Streetlite flywheel and torque the mounting bolts to factory specifications.
- Center the ZM14-HDG6 6-pad disc using the supplied alignment tool, then bolt on the Heavy Duty pressure plate.
- Install the new pilot bearing and release bearing included with the ZM14-HDG6 kit.
- Reinstall the transmission, reconnect the hydraulic clutch line, and bleed the clutch system before test driving.
Prop 65 Warning
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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