What is a hubcentric wheel adapter?

A hubcentric adapter has a center bore that matches your vehicle's hub diameter. This ensures the adapter mounts flush and centered on the hub, which helps distribute weight evenly and prevents vibrations.

Do I need special lug nuts or bolts for these adapters?

Yes, because these adapters push your wheels out by 15mm, you will need longer wheel bolts to properly and safely secure the wheel to the adapter. H&R offers extended length hardware separately.

What is the material of these adapters made from?

These adapters are manufactured from a special proprietary alloy that has a higher tensile strength than standard 6061-T6 billet aluminum, making them strong and lighter.

Specifications

Brand: H&R
Part #: 30245410
UPC: 30245410

H&R Trak+ 15mm DRS Wheel Adaptor Bolt 4/100 Center Bore 54.1 Stud Thread 12x1.5

Name: H&R Trak+ 15mm DRS Wheel Adaptor Bolt 4/100 Center Bore 54.1 Stud Thread 12x1.5
Brand: H&R
SKU: h-r-h-r-trak-15mm-drs-wheel-adaptor-bolt-4-100-center-bore-54-1-stud-thread-12x1-t14-246946
Price: 152.28 USD
Availability: InStock

$152.28

Only 2 left in stock

Fits 1990-2005 Mazda Miata. H&R Trak+ 15mm wheel spacers move wheels out for a flush fender stance and improved handling.

Key Features

Fits 1990-1997 and 1999-2005 Mazda Miata, 1991-1994 Mazda 323, 1992-1995 Mazda MX-3, and 1991-1998 Mazda Protege.
Moves wheels outward 15mm for a flush fender stance and wider track width.
Hubcentric design with full contact hub ensures even load distribution and lateral support.
Constructed from a proprietary alloy that offers higher tensile strength than 6061-T6 billet aluminum.
Features a 4x100 bolt pattern, 54.1mm center bore, and 12x1.5 stud thread size.
Made in Germany.

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Will this fit your vehicle?

About this part

Product Details

If you're looking to give your 1990-2005 Mazda Miata a more aggressive stance and potentially improved handling, these H&R Trak+ 15mm DRS wheel adapters are a solid option. They push your wheels out 15mm, making them sit flush with the fender for that wide, planted look. This can also help with stability by widening your track width.

H&R makes these adapters from a special alloy that's stronger and lighter than typical 6061-T6 aluminum. They are hubcentric, meaning they have a full contact hub that matches your car's factory hub. This ensures even load distribution and proper lateral support, which is key for smooth operation and safety. The 15mm thickness is enough to make a visual difference without causing excessive stress on your wheel bearings.

These adapters use a 4x100 bolt pattern with a 54.1mm center bore, matching many Miata models. They also feature a 12x1.5 stud thread size. Remember that when you extend your wheels outward, you'll need longer wheel bolts to properly secure them. H&R offers these extended length bolts separately.