Best 4×98 to 4×100 Wheel Adapters for Alfa Romeo and More
Discover dependable adapters that convert 4×98 bolt patterns to 4×100 for a broader wheel fitment. This guide highlights five compatible options from EZAccessory, detailing how each set supports stability, clearance, and safe installation for enthusiasts upgrading Alfa Romeo models and other 4×98 hubs. Each product emphasizes center bore, stud size, and thickness to ensure proper fit and alignment with 4-lug vehicles while enabling compatibility with 4-lug Acura Integra, BMW, and similar platforms.
| Product | Bolt Pattern Conversion | Thickness | Center Bore | |
|---|---|---|---|---|
| EZAccessory 4 Wheel Adapters 4×98 to 4×100 | 4×98 to 4×100 | 1″ (25mm) | 58.1mm | 4 pcs; Alfa Romeo 145/146/155 hubs |
| EZAccessory 2 Wheel Adapters 4×98 to 4×100 | 4×98 to 4×100 | 1″ (25mm) | 58.1mm | 2 pcs; Alfa Romeo 145/155 hubs |
| 2 Wheel Adapters 4×110 to 4×100 | 4×110 to 4×100 | 1″ (25mm) | 73mm | 2 pcs; Can-Am, Kawasaki and similar 4×110 hubs |
| 4 Wheel Adapters 4×100 to 5×100 | 4×100 to 5×100 | 1.5″ (38mm) | Not specified | 4 lug to 5 lug conversion |
| ezaccessory 4×130 to 4×100 | 4×130 to 4×100 | 1″ (25mm) | Not specified | Fit older VW models; 4×130 to 4×100 conversion |
EZAccessory 4 Wheel Adapters 4×98 to 4×100
These adapters are designed to convert 4×98 bolt patterns to 4×100, enabling wheels with a 4×100 pattern to fit Alfa Romeo 145, 146, and 155 hubs. The kit includes four adapters with a 1-inch thickness and a center bore of 58.1mm, along with 12×1.5 studs. The construction supports stability and an aggressive stance, and users may experience improved clearance for calipers or other obstructions. This option is suitable for those seeking a full-set solution for multiple wheels.
EZAccessory 2 Wheel Adapters 4×98 to 4×100
This 2-piece set converts 4×98 hubs to 4×100 bolt patterns for Alfa Romeo 145/155 applications, matching 58.1mm center bore and 12×1.5 studs with a 25mm thickness. It is tailored for owners who only need a pair of adapters, offering a compact solution for upgrading one or two wheels while maintaining structural integrity and safe operation. Like broader kits, it supports a more assertive appearance and compatible wheel choices.
2 Wheel Adapters 4×110 to 4×100
These two adapters convert from a 4×110 bolt pattern to 4×100, featuring a 73mm center bore and 12×1.5 studs with a 25mm thickness. While designed for ATVs and various Can-Am, Kawasaki models, they also enable 4×100 wheel installation on compatible 4×110 hubs. This option broadens vehicle compatibility for those navigating different hub configurations and wanting to fit 4×100 wheels.
4 Wheel Adapters 4×100 to 5×100
This kit converts 4×100 bolt patterns to 5×100, supporting the installation of 5-lug wheels on vehicles originally equipped with 4-lug configurations. It comes as a 2-pair set (four adapters), designed for 4×100 hub vehicles and intended for wheel compatibility expansion. The suppliers emphasize proper fit and mounting compatibility, with attention to alignment and stability during driving conditions.
ezaccessory 2 Billet Wheel Adapters 4×100 to 4×110
This pair of billet adapters converts 4×100 to 4×110 with a 64mm center bore and 12×1.5 studs, providing a robust, forged aluminum construction for reliable strength. Included are two adapters; however, hub centric rings and mounting lug bolts are not included. The design focuses on maintaining stability while allowing the use of wheels with a different bolt pattern, with attention to clearance around brake components.
ezaccessory 2 Billet Wheel Adapters 4×100 to 4×4
This set of billet adapters converts 4×100 to 4×101.6 (4×4.0) with a 64mm center bore and 12×1.5 studs, offering a sturdy, forged aluminum build. Sold as a pair, these adapters enable installation of 4×4-offset wheels on 4×100 hubs, pairing with vehicles that require precise alignment and robust mounting hardware to prevent caliper interference and ensure wheel safety.
ezaccessory 4 Wheel Adapters 4×130 to 4×100
These adapters fit 4×130 bolt pattern vehicles and convert to 4×100 bolt pattern. They feature aircraft-grade forged 6061-T6 billet construction, precision CNC machining, corrosion-resistant anodizing, and 10.9-grade steel mounting studs with included lug nuts. This option is designed for confident drivers seeking a high-load-capacity solution with reliable alignment and compatibility for a wider range of wheels on classic and older VW, Honda, Acura, and other models.
Buying Guide
Key purchase considerations when selecting 4×98 to 4×100 wheel adapters include material and build quality, center bore compatibility, stud size and thread pitch, thickness, hub-centric design, and whether lug nuts or mounting hardware are included. High-quality billet aluminum adapters typically offer better strength-to-weight ratios and corrosion resistance, reducing risks of flex or distortion under load. Ensure the center bore matches your vehicle to maintain proper centering and braking performance.
Other factors to evaluate are the total thickness and offset change, potential clearance with brake calipers and suspension components, and whether the adapters are sold in complete sets (2-piece or 4-piece) to fit your wheel count. For Alfa Romeo applications, confirm compatibility with 4×98 hubs and the specific Alfa models (e.g., 145, 146, 155) and verify that the adapter thickness does not push the wheel too far outward, causing fender or suspension contact. If you plan to install 5-lug wheels, consider 4×100 to 5×100 options carefully to ensure safe lug engagement and proper wheel seating.
When comparing options, prioritize kits that provide clear specifications: bolt pattern conversion, center bore, stud size, and thickness. Look for hub-centric designs that minimize runout and vibration. Check user reviews for real-world fitment notes, including any caliper clearance issues and required spacers or extended lug studs. Finally, verify seller warranty and return policies to address any installation or fitment concerns.