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Direct-Replacement 15mm Spacers Engineered for the 2025+ BMW M5
The H&R HRS305455664SW is a pair of 15mm DR-style wheel spacers designed specifically for the 2025-and-newer BMW M5. DR (Direct Replacement) spacers bolt directly to the hub using the original wheel bolts, creating a wider track width for improved handling response, a more aggressive wheel-to-fender stance, and better fill of the factory wheel arches. The kit is manufactured to a 5/132 bolt pattern with a 66.5mm center bore matched to the M5 hub, and comes finished in black for a clean, low-visibility installation behind the wheel. Thread pitch is 14x1.25.
Key Features
- 15mm Thickness: Pushes the wheel face 15mm outward per side, widening track width for improved cornering geometry and a more planted stance
- DR Direct Replacement Design: The HRS305455664SW uses the factory wheel bolts; no hub-centric ring or extended bolt required for standard installation on the BMW M5
- 5/132 Bolt Pattern: Matches the BMW M5's 5-lug 132mm bolt circle exactly
- 66.5mm Center Bore: Hub-centric fitment eliminates vibration by centering the spacer precisely on the M5's hub flange
- 14x1.25 Bolt Thread: Matched to the factory BMW M5 wheel bolt thread specification
- Black Finish: Low-visibility black anodized or coated surface blends with the brake components behind the wheel
- Sold as a Pair: Includes two spacers (one per axle side) for a symmetric track width increase
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 2025+ | BMW | M5 |
Specifications
| Detail | Value |
|---|---|
| Part Number | HRS305455664SW |
| Brand | H&R Springs |
| Thickness | 15mm per side |
| Style | DR (Direct Replacement) |
| Bolt Pattern | 5/132 |
| Center Bore | 66.5mm |
| Bolt Thread | 14x1.25 |
| Finish | Black |
| Quantity | 2 (pair) |
| Application | 2025+ BMW M5 |
| UPC | N/A |
What's Included
- 2x HRS305455664SW 15mm wheel spacers
About H&R Springs
H&R Springs is a German suspension manufacturer with over four decades of experience producing performance springs, coilovers, sway bars, and wheel spacers for European and domestic platforms. Every H&R product is engineered and manufactured in Lennestadt, Germany, and certified to TUV and SAE standards for dimensional consistency and material quality.
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Frequently Asked Questions
What is the HRS305455664SW?The HRS305455664SW is an H&R 15mm DR-style wheel spacer pair for the 2025+ BMW M5. It bolts directly to the hub using the factory wheel bolts with a 5/132 bolt pattern, 66.5mm center bore, and 14x1.25 thread pitch, pushing the wheel face 15mm outward per side to widen the vehicle's track width.
What does DR style mean?DR stands for Direct Replacement. A DR-style spacer uses the factory wheel bolts rather than requiring extended hub bolts or studs. The spacer seats against the hub face, the factory bolt goes through the spacer and into the hub, and the wheel seats normally against the spacer. This is the most straightforward spacer installation type for vehicles with bolt-on wheels.
Do I need new wheel bolts when installing these spacers?No. The DR design uses the factory wheel bolts. However, verify that your factory bolt length remains adequate with the 15mm spacer in place. If your factory bolts are at minimum engagement depth, longer bolts may be required. Consult H&R's installation documentation for bolt engagement recommendations specific to the M5.
Do I need an alignment after installing wheel spacers?Yes. Wheel spacers change the effective scrub radius and track width, which affects camber and toe geometry. A full wheel alignment is recommended after installation to ensure proper tire wear and handling balance.
Are wheel spacers safe?H&R spacers are TUV-certified and manufactured to strict dimensional and material tolerances. When properly installed using correct torque specifications and periodically re-torqued after initial driving (typically after the first 50 to 100 miles), H&R spacers are a safe and reliable fitment solution. Always follow H&R's installation instructions and never exceed the specified torque values.
Will these spacers cause wheel bearing wear?Any spacer adds a small amount of lever arm to the wheel bearing load. The 15mm offset is modest and within normal engineering tolerances when installed correctly. H&R's hub-centric design minimizes off-center loading, which is the primary cause of accelerated wheel bearing wear with lower-quality spacers.
Are lug covers or caps included?No. The spacers only are included. If the exposed bolt heads visible through the wheel spokes are a cosmetic concern, aftermarket lug covers compatible with the M5 bolt head size are available from BMW specialty accessory suppliers.
Can these spacers be used on track?Yes. H&R spacers are used in both street and competition environments. For track use, inspect and re-torque the wheel bolts before each event. H&R's TUV certification covers normal performance driving conditions.
Installation Instructions
- Safely lift the vehicle and support it on jackstands at factory lift points; remove the wheel from the corner being worked.
- Inspect the hub mating surface and wheel mounting face for rust, debris, or corrosion; clean both surfaces thoroughly before installation.
- Install the spacer onto the hub, ensuring the center bore seats fully over the hub flange and the bolt holes align.
- Thread the factory wheel bolts through the wheel and spacer by hand until snug; do not cross-thread.
- Torque all wheel bolts to the BMW M5 factory specification in a star pattern.
- Lower the vehicle and re-torque all wheel bolts after driving 50 to 100 miles; spacers require a re-torque interval as they seat against the hub.
- Inspect periodically and re-torque if any looseness is detected.
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