SSR Wheels

SSR Wheels (Speed Star Racing)

Definition and Core Positioning
SSR, short for Speed Star Racing, is a renowned Japanese alloy wheel manufacturer founded in 1971. Headquartered in Osaka, the brand currently operates under Tanabe Co., Ltd. As one of Japan's earliest wheel makers, SSR earned its legendary status through a pioneering milestone: in 1971, founder Masanobu Hamada developed the MK-I, Japan's very first 3-piece alloy wheel, ushering in the multi-piece era for the Japanese aftermarket wheel scene. SSR's core philosophy has always centred on being "track-proven". The "Racing" moniker is no mere gimmick—SSR once ran its own works racing team, gathering extensive engineering data across top-tier motorsport series including Formula Nippon, JTCC, and JGTC/Super GT.

Motorsport Heritage and Racing Involvement
SSR boasts an illustrious motorsport pedigree. In 1977, the brand established the "Speed Star Wheel Racing Team" with legendary driver Kunimitsu Takahashi competing in the All-Japan F2000 Championship, securing victory on the debut outing of its in-house developed wheels. Over the following decade, the outfit remained active across F2/F3000, the Fuji Grand Champion Series (Fuji GC), and endurance racing. During the Group 4 and Group 5 eras, SSR-shod BMW M1 race cars clinched the 1980 All Japan Endurance Championship and the 1982 International Suzuka 1000km, whilst finishing fourth overall at the 1982 World Endurance Championship 6 Hours of Fuji. In 1988, SSR supplied 3-piece magnesium alloy wheels to the Leyton House March F1 team. In touring car championships, the SSR-backed Hasemi Motorsport team claimed the JTCC JTC-1 class championship titles in 1989, 1991, and 1992 in the iconic Nissan Skyline GT-R. In 1996, the SSR-sponsored Team Kunimitsu Honda NSX achieved a podium finish, taking 3rd place in the LMGT2 class at the 24 Hours of Le Mans. SSR later became an official wheel supplier for the Super GT GT300 class in 2003, stepping up to the premier GT500 class in 2004.

Core Engineering and Proprietary Technologies
At the heart of SSR's engineering prowess is its relentless innovation in rim-forming technologies. Its manufacturing matrix encompasses four distinct processes: FORGED, HTM (Heat Treatment Manufacture), FFT (Flow Forming Technology) and FFT-R, tailored specifically for 1-piece, 2-piece, and 3-piece wheel architectures. HTM is SSR's proprietary technology developed for 3-piece rims, utilizing repeated forming and thermal treatment to enhance structural durability whilst shaving unsprung weight—an innovation forged directly in competition. FFT-R represents SSR's advanced flow-forming method, applying hot-rolling to the cast rim barrel. This aligns the aluminium grain structure densely along the rolling direction to create forging-like flow lines, dramatically boosting rigidity and allowing for ultra-thin wall profiles. SSR also employs seamless rim barrel technology, utilizing circular blank stamping to eliminate weld seams and structural weak points, ensuring exceptional roundness. Attention to detail is evident in features such as knurling (anti-slip bead seat machining) to prevent tyre slippage under high torque—a crucial motorsport-derived feature—and the Step Rim profile, which increases internal air volume to enhance tyre compliance and ride comfort.

Flagship Product Lineup
SSR's comprehensive catalogue spans classic heritage designs to cutting-edge performance wheels. The MK Series remains SSR's founding icon; the MK-I is instantly recognizable by its minimalist "1-yen coin" solid disc face, whilst the MK-II and MK-III continue this lineage with classic cross and double-cross spoke designs, all of which remain in production today. The Formula Mesh is another timeless icon celebrated for its intricate cross-spoke pattern, with the 2026 Formula MESH HC carrying this design heritage forward. The Type-C represents SSR's pure racing DNA; the newly released 2025 Type-C Forged utilizes a 10,000-tonne high-pressure forging press—living up to the "C" for "Competition"—setting the benchmark for SSR's modern forged rigidity and ultra-lightweight performance. The GT Series serves as SSR's mainstream performance lineup for modern sports cars, leveraging FFT/FFT-R flow-forming to deliver near-forged strength and performance at an accessible price point. The 2026 lineup introduces the GTX01 Forged (a 10-spoke design with extreme weight reduction in its forged guise), the GTX05 DR EDITION (a 6-spoke drift-spec rim featuring a high-rigidity stepped lip), and the GT V06. The REINER Series is SSR's bespoke 2-piece sub-brand offering millimetre-precise offset customisation, with the 2026 type7S/7R sporting distinct raised spoke ends for an aggressive deep-concave aesthetic. The EXECUTOR Series caters to luxury-sport applications in 3-piece configurations, headlined by the CV07 with its sharp, three-dimensional intersecting V-spoke architecture. SSR also continues to evolve its legendary multi-piece lineup, including the iconic Professor series.

Quality Standards and Manufacturing Excellence
Every SSR wheel conforms to stringent dual certification standards: JWL (Japan Light Alloy Wheel standard) and VIA (Vehicle Inspection Association of Japan). While JWL compliance is verified via internal manufacturer testing, VIA certification requires independent third-party validation. Rigorous test protocols include dynamic radial fatigue testing (500,000 revolutions), dynamic cornering fatigue testing (100,000 revolutions), and severe impact testing (such as subjecting an 18-inch wheel to a 594 kg impact drop), where any sign of cracking results in immediate failure. SSR enforces internal benchmarks that far exceed standard JWL and VIA regulatory requirements, engineering wheels to significantly higher rigidity targets. Production remains proudly rooted in Japan, with state-of-the-art manufacturing facilities based in Osaka and Nara.

Brand Heritage and Market Positioning
SSR's journey has also seen notable restructuring. Following Speedstar's bankruptcy in 2005, the brand was acquired by Tanabe Co., Ltd.—an established performance tuning house founded in 1982 specializing in clutches, suspension setups, and exhaust systems—which has since spearheaded SSR's global operations. In the aftermarket wheel landscape, SSR occupies a sweet spot between RAYS/Volk Racing's pure forged track-oriented ethos and WORK Wheels' bespoke stance and fitment appeal: its forged offerings (such as the Type-C Forged) cater to dedicated track enthusiasts, its flow-formed GT Series delivers exceptional value for fast road applications, and its multi-piece ranges (REINER, EXECUTOR) maintain SSR's legacy as Japan's multi-piece pioneer. Furthermore, SSR's active involvement as a Super GT wheel supplier (currently backing the Honda NSX-GT) cements its elite status as a bona fide "active motorsport supplier"—a distinction held by only a select few Japanese wheel makers.