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Jass Performance Extended Travel Top Mounts (12mm Bore)
These Extended Travel Top Mounts are engineered to increase effective suspension stroke, primarily addressing the issue of bump stop engagement common in lowered Miata/MX5 setups, particularly at the rear axle. The design provides greater travel than standard top mounts (including OEM MK2 parts).
Technical Specifications and Features
Precision-engineered solution for maximizing shock travel on lowered setups:
Key Features and Construction
- Primary Function: Provides extended suspension travel compared to standard top mounts.
- Center Bore: Features a 12mm center bore, specifically designed for shocks utilizing a 12mm stem diameter (e.g., Koni).
- Structure: Constructed from steel with a dual-layer finish: Zinc coating beneath a durable Black Powdercoated finish for maximum corrosion resistance.
- Included Hardware: Comes with all necessary components for installation.
Ride Height Adjustment and Spring Cushion
- Included: Supplied with a spring cushion to center the coil spring on the top mount.
- Stock Height Matching: The cushion must be sliced to 15mm to maintain a ride height consistent with the stock suspension level.
- Lift Function: Leaving the cushion uncut allows it to function as a spring spacer, resulting in a corresponding vehicle lift.
Ordering and Fitment Notes
- Quantity: Sold per axle (one set covers two corners). They are most commonly used/needed at the rear axle.
- Alternative Bore: A separate 10mm center bore version is available for OEM shocks and most other common aftermarket shock brands.
- Critical Fitment Exclusion: These Top Mounts will NOT fit on the front axle of NB/NBFL (MK2/MK2.5) models.
- Installation Support:
- Installation Support: An installation support topic is available in the forum section for reference.
| Mazda MX5 Model | |
| NA (MK1) | |
|---|---|
| NB (MK2) | Rear Only |
| NBFL (MK2.5) | Rear Only |
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