Mx-5 Polycarbonate Hardtop Rear Screen – NA/NB

Upgrade your MX-5 hardtop with a lightweight polycarbonate rear screen made from premium Polycarbonate. Designed for real-world use, track performance, and long-term durability — without compromising usability.

Massive Weight Reduction Where It Matters Most

Replacing the OEM rear glass window is one of the most effective ways to reduce weight on an MX-5 — especially because it sits at the highest point of the car.

• OEM rear glass: ~9 kg
• 3 mm polycarbonate: < 3 kg
• 2 mm polycarbonate: < 2 kg

 Up to 7 kg saved from the roof alone

One-Person Hardtop Handling

A very noticeable real-world benefit of this upgrade is how much easier the hardtop becomes to handle.

With the polycarbonate window installed:

• In most cases, one person can install or remove the hardtop alone

With OEM glass:

• Significantly heavier and more awkward
• Usually requires two people to handle safely

This alone can completely change how you actually use your hardtop.

Take It Even Further

For maximum weight reduction, combine this window with our Superlight Hardtop Mounting Brackets:

• Complete bracket set (4 pcs): 185 g
• Bolts: 165 g
• Total: 350 g

Compared to OEM mounts:

• OEM brackets + bolts: ~3280 g

 Nearly 3 kg saved just on mounts

Total Combined Weight Saving

Polycarbonate window + superlight brackets:

 ~9–10 kg total reduction

✔ No loss of functionality
✔ No compromise on usability

 Thickness Options

3 mm – Recommended (Street & Track)

• Ideal for dual-purpose cars
• Complies with most motorsport regulations
• More stable visually (less vibration)
• Best overall balance

2 mm – Race Option

• Maximum weight saving
• Slightly more flexible and may show minor vibration
• Best suited for track-focused builds

Smart Design Approach

This window is not thermoformed.
It is a precision pre-cut flat sheet that is shaped during installation to match the hardtop.

This enables significantly more competitive pricing compared to thermoformed versions

Weather Sealing

When installed correctly following the instructions:

✔ Fully sealed fitment
✔ No leaks during normal use or washing
✔ OEM-like weather protection

Proven in Real Use

This is not a new or untested product.

We have been running this setup on our own car since 2017 — nearly 10 years of real-world use.

• Daily driving
• Track use
• Long-term exposure to sun

Result:
✔ Reliable
✔ Durable
✔ Still looks great

We are very confident in this product and happy to finally offer it to our customers.

Shipping Information

Due to size constraints:

• 3 mm version → shipped flat
   Currently available within Europe only
• 2 mm version → shipped rolled
   Available worldwide

Black Edge Finish

For OEM+ look and cleaner finish:

• Pre-cut protection film around the outside edge
• You can spray paint inner edge black using spray paint

What’s Included

• Polycarbonate rear screen (pre-drilled)
• Mounting hardware (bolts, O-rings, washers, nuts)
• Weather seal (black)
• Installation instructions