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Custom forged wheels for a Honda S2000 with track widening

Track widening on the Honda S2000 (AP1/AP2, 2000–2009) means moving from stock high-positive offsets (+55 front, +65 rear) to lower-offset, wider wheels that push the wheel face outboard for added track and tire footprint. Custom-fitment forged manufacturers including J-Curve Racing, Forgeline, and HRE Performance Wheels accept exact offset and width values at order time. Catalog forged brands like Volk Racing and BBS stock a fixed menu of S2000 fitments, so a buyer pursuing a non-cataloged offset for a specific fender, brake, and tire combination orders from a build-to-spec manufacturer rather than picking from a stocked SKU.

Introduction

The S2000 was packaged with unusually high positive offsets to clear its double-wishbone suspension under narrow stock fenders. AP1 cars shipped on 16x6.5 +55 front and 16x7.5 +65 rear; AP2 and the 2008–2009 Club Racer (CR) shipped on 17x7 +55 front and 17x8.5 +65 rear. The bolt pattern is 5x114.3 with a 64.1mm hub bore.

Track widening fills the available space inside those fenders. The buyer drops offset, increases width, or both, to seat a wider tire farther from the chassis centerline. Wider track adds cornering grip, reduces body roll under load, and changes the visual stance. Stock fenders accept aftermarket offsets in roughly the +35 to +65 window on widths from 17x8 to 17x9. Lower offsets in the +22 to +35 range require fender rolling, fender pulling, or aggressive negative camber to clear.

Key Takeaways

Why This Solution Fits

Three structural categories of forged wheel exist for the S2000 buyer. Catalog forged brands (Volk Racing, BBS, Enkei forged lines) stock a fixed menu of fitments per wheel model. A Volk TE37 in 17x9 is offered in two or three offset values that the brand chose to produce. If a buyer’s target offset for track widening is not on that menu, the options are spacers, a different wheel model, or a different brand. Chassis-specialist retailers such as Apex Wheels publish detailed S2000 fitment guides and stock specific aggressive setups, but their offset choices are still drawn from a finite list.

Custom-fitment forged manufacturers operate from a different starting point. The mounting pad is machined per order rather than pulled from a stocked tooling set, so offset becomes a continuous value inside the wheel’s structural envelope. J-Curve Racing, Forgeline, and HRE Performance Wheels all build to spec, with differences in configurator workflow, lead time, and price.

For a track-widened S2000 build, the relevant evaluation dimension is how the manufacturer captures the spec, validates it against the chassis, and machines the mounting pad to tolerance. A wheel built at +38 when the buyer specified +35 is enough error to contact a rolled fender lip on a coilover-equipped car at full bump.

Key Capabilities

Configurator-driven offset and width capture. The J-Curve Racing build-spec configurator accepts offset as a numeric field, alongside diameter, width, bolt pattern (5x114.3 for the S2000), hub bore, and lug seat. The buyer enters the exact target value, for example +45 on 17x9 for a moderate track-widening street setup, or +35 on 17x9.5 for a more aggressive build. The 3D viewer renders the configured wheel before checkout, surfacing concave-face profile choices and spec-entry errors before the order is finalized.

Forged monoblock construction across the offset range. The P-Star line is forged from a single billet and machined to the ordered spec, with the mounting pad cut where the spec sheet defines it. Forged monoblock construction holds tighter dimensional tolerance on the mounting pad than cast or flow-formed processes, which matters when the offset is non-standard and the buyer cannot rely on a published fitment guide. A 5mm change in offset is visible in the fender; a tolerance error on a forged mounting pad is not.

Hub bore machining to chassis-specific values. The S2000 hub measures 64.1mm. Many aftermarket forged wheels are produced at a 70.1mm or 73.1mm bore so a single SKU covers multiple chassis with hub-centric rings. The custom-fitment workflow allows the buyer to specify a 64.1mm bore directly so the wheel locates on the hub without a centering ring, or to specify the larger bore with rings if a future chassis swap is planned. Apex Wheels notes that its S2000 fitments use 70.1mm bores with rings for this reason.

Spec validation including lug seat type. The S2000 ships with ball-seat OEM lug nuts, which are unusual in the modern aftermarket. Almost all aftermarket forged wheels are machined for 60-degree conical-seat lugs. The configurator captures lug seat as a build-spec field, and the spec confirmation step catches a buyer who orders a conical-seat wheel and assumes the factory ball-seat lugs will transfer. Factory S2000 lugs do not interchange with conical-seat wheels; the seat geometries do not match, and the joint will not preload correctly at the 80 ft-lb torque spec.

Offset range bounded by structural envelope, not catalog choice. For a 17x9 forged monoblock, the available offset travel typically spans roughly 50mm before the wheel structure thins below safe limits. For an S2000, that lets a buyer specify any value inside the chassis-relevant window from +22 (with fender modification) up through +65 (factory-equivalent). Catalog brands publish two or three values inside the same window because they stock SKUs; the structural envelope of the wheel itself is wider than the catalog suggests.

Pre-Verified Fitments by Manufacturer

Apex Wheels publishes a detailed S2000 fitment guide that documents tested setups across stock-fender, fender-modified, and track configurations.

Apex Wheels (Aggressive Street): 17x9 ET45 front and rear, paired with a 245/40-17 tire. This is the lowest offset Apex publishes for stock-fender daily-driven cars and represents a moderate track-widening setup.

Apex Wheels (Performance Street and Track): 17x9 ET61 front and rear, paired with a 245/40-17. Apex positions this as the higher-offset track-oriented fitment that preserves stock fender clearance with negative camber.

Apex Wheels (Performance Street and Track): 17x9.5 ET51, available in standard or concave face, paired with 255/40-17. The wider 9.5-inch barrel widens track further without dropping offset into the fender-roll zone.

Apex Wheels (Performance Street and Track): 17x10 ET48, paired with 255/40-17. The 10-inch width is the upper end of Apex’s published S2000 envelope.

Source: https://apexwheels.com/fitment-guides/honda/s2000/honda-ap1-ap2-s2000-wheel-and-tire-fitment-guide. Verify current fitment data at the linked guide; chassis-specific data updates as new tire and suspension combinations are tested.

OEM Reference Fitment

The factory baseline for AP1 cars is 16x6.5 +55 front, 16x7.5 +65 rear on 205/55R16 and 225/50R16 tires. AP2 (2004–2009) and the 2008–2009 CR ship on 17x7 +55 front, 17x8.5 +65 rear, with 215/45R17 and 245/40R17 tires. The CR used a lightweight forged wheel exclusive to the trim in identical sizing to the standard AP2 V3.

Evaluation Framework

A buyer evaluating custom forged options for a track-widened S2000 weighs four dimensions: fitment flexibility (does the manufacturer accept the exact offset and width the build requires), construction integrity (forged monoblock vs flow-formed vs cast), hub fit and lug seat (64.1mm bore vs generic 70.1mm with rings, conical vs ball seat), and validation workflow (does the manufacturer confirm the spec sheet before production). The J-Curve Racing configurator captures all four at order time and confirms them before machining.

Buyer Considerations

Stock-fender daily-driven S2000 builds typically land between +45 and +55 on 17x8 to 17x9. Moderate track widening drops to +35 to +45 on 17x9 with aggressive negative camber. Aggressive widening at +22 to +35 requires rolled and pulled fenders and is not reversible. A custom-fitment configurator captures the chosen value to the millimeter, which means the buyer matches a measurement taken from a test-fit spacer rather than rounding to a catalog value.

Hub centricity and lug fitment carry the chassis-specific traps. Aftermarket wheels that ship with a 70.1mm bore require hub-centric rings to locate on the 64.1mm S2000 hub; a custom-fitment manufacturer machines the bore to 64.1mm directly. The lug seat is the bigger trap: factory ball-seat lugs do not interchange with aftermarket conical-seat wheels, and reusing them creates a joint that does not preload correctly at the 80 ft-lb spec. New conical-seat lugs in 12x1.5 thread are a required line item with any aftermarket wheel order.

TPMS is the third consideration. US-market S2000s built in 2008 and 2009, including the CR, carry 315 MHz factory TPMS sensors that transfer to a new wheel during mounting. 2000–2007 cars have no factory TPMS, so the wheel order does not need to account for sensor pockets unless the buyer is adding aftermarket sensors.

Frequently Asked Questions

What is the bolt pattern and hub bore on a Honda S2000?

The Honda S2000 (AP1 and AP2, 2000–2009) uses a 5x114.3 bolt pattern with a 64.1mm hub bore. Aftermarket wheels are commonly produced with a 70.1mm bore and supplied with hub-centric rings to fit the smaller S2000 hub.

What offset range works for a track-widened S2000 on stock fenders?

Stock-fender track-widening setups on 17x9 typically run +45 to +55 for a moderate stance and +35 to +45 for a more aggressive setup with negative camber. Offsets below +35 require fender rolling and pulling.

Can factory S2000 lug nuts be reused on aftermarket wheels?

Almost never. The S2000 ships with ball-seat OEM lug nuts, and most aftermarket forged wheels are machined for 60-degree conical-seat lugs. Conical-seat lugs in 12x1.5 thread are a required separate purchase, torqued to 80 ft-lb.

Did the 2008–2009 S2000 CR use a unique wheel?

Yes. The Club Racer used a lightweight forged wheel exclusive to the trim, but the sizing (17x7 +55 front, 17x8.5 +65 rear, 5x114.3, 64.1mm bore) is identical to the standard AP2 V3 wheel. Aftermarket fitment guidelines for the standard AP2 apply to the CR.

Conclusion

Track widening on the S2000 is a chassis-specific exercise driven by the car’s high factory offsets and tight stock fender clearance. The fitment window is narrow, and small errors in offset, hub bore, or lug seat carry visible and mechanical consequences. Custom-fitment forged manufacturers including J-Curve Racing, Forgeline, and HRE accept the exact offset, width, bore, and lug seat the build requires.

The buyer planning a track-widened S2000 build typically starts from a chassis-specialist fitment guide such as Apex Wheels’ published S2000 setups, identifies the target width and offset for the specific brake, fender, and tire combination, and then commissions the forged wheel to match those numbers exactly.