SSR Wheels GTX04

SSR Wheels GTX04 - Unrivalled Light Weight Model

The Next Generation of SSR GT Series Engineering

SSR Wheels GTX04 is a flow-formed monoblock performance wheel engineered around the principle of extreme weight reduction without structural compromise. Developed under SSR's rigorous FFT-R (Flow-Forming Technology Refined) process, the GTX04 delivers forging-equivalent strength in a compact, lightweight package designed for compact performance cars and sports vehicles.

SSR Wheels GTX04 Design and Engineering

The GTX04 features a refined multi-spoke architecture where every component - spoke cross-section, center hub area, and rim profile - has been systematically reduced to minimize mass while preserving rigidity. The spoke ribs are positioned in a one-step drop formation to maintain structural integrity under dynamic loads. Three distinct face configurations are available: Face-SMI (shallow), Face-CV (concave), and Face-SC (super concave), allowing owners to tailor the wheel's visual and functional profile to their application.

SSR Wheels GTX04 Design Features

SSR FFT-R Process: A proprietary flow-forming method that achieves forging-equivalent wall strength while enabling the inner rim to be thinned further than standard casting allows. Spoke Back Milling: Based on strict computer-aided strength analysis, excess material is machined from the reverse face of each spoke, reducing cross-sectional area by 13% per spoke. Shot Peening: Post-machining surface treatment that compresses the material grain structure, restoring surface strength after milling and enabling additional weight savings. Combined engineering target: approximately 400g reduction per wheel against comparable cast designs.

SSR Wheels GTX04 Technical Specifications

Construction: Flow-formed monoblock. Material: Aluminum alloy. Available diameters: 17-18 inches. Available widths: 7.0-10.5 inches. Face options: SMI (shallow), CV (concave), SC (super concave). Finish: Dark Gunmetal. JWL certified. Custom sizes available to order.

SSR Wheels GTX04 Available Finishes

The GTX04 is offered in Dark Gunmetal across all face configurations. The SMI face is available in 18-inch diameters (8.5J-10.5J); the CV and SC faces follow the same diameter range; a 17-inch 7.0J configuration is also offered for compact applications requiring smaller diameter fitments.

SSR Wheels GTX04 Vehicle Fitment: Honda Civic Type R, Toyota GR86, GR Supra, GR Yaris

The GTX04 targets the compact performance segment - hatchbacks, sports coupes, and lightweight track-oriented builds. Its 17- and 18-inch range covers the most common OEM diameters on platforms like the Honda Civic Type R (FL5), Toyota GR86, Toyota GR Supra (A90), and Toyota GR Yaris. The multiple face options allow compatibility with a wide range of brake caliper sizes without sacrificing fitment quality.

Any Performance Platform, Any Specification

The GTX04 can be configured to order for any vehicle and any specification - not just the platforms listed above. Whether your build calls for a larger diameter, a specific width, or a custom offset, SSR can manufacture the GTX04 to your exact requirements. Contact us with your vehicle make, model, and year for a confirmed fitment specification and build quote.