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SSR JGTC Race cars with CompH wheels

SSR and their unique SSF technology have made an impact on motorsports, in particular with their recent introduction of the Hybrid wheel ("Comp-H" in the U.S./"Type C-RS" in Japan). The only difference between the wheels used on the JGTC racecars and those sold by Tire Rack are the finishes and the design for mounting to car (center lock on JGTC racecars and multiple lug bolts/nuts on the Comp-H).

The Hybrid wheel uses a specially made SSF center disk/outer lip assembly that is lap-welded to a T6061 forged and spun inner rim section to achieve the Hybrid’s specific widths and diameters. This increases the size range to 19” in diameter and over 13” in width. The material dimensions for both areas using SSF and T6061 materials are modified as compared to the 1-piece SSF wheel, to achieve balance and increased strength for motorsports use.

As with all SSR wheels, the wheels used on the track follow the JWL/VIA testing procedures. Track wheels are tested, though, with increased load and cycle values.

Racecar drivers have noted that on the track, the SSF wheels (Comp-H) have a decidedly noticeable feel. The wheels are designed to give the driver and team the most advantage possible and their six-spoke styling is ergonomically designed for ease of handling. In the pits, tire changes are made easier because the spokes are convenient to hold at the right installation angle (not possible with a mesh wheel).

The ability to absorb tremendous impact and not shatter is another priority in the design of the wheel. The six-spoke design distributes impact energy throughout the wheel rather than focusing it on any particular place. This is where design balance pays off. JGTC drivers have wheels built specifically for their driving needs, “tuning” the feel of the chassis by tuning the wheels. SSR takes this input and modifies the design for the driver. Drivers comment on how the SSF wheel responds dynamically when compared to other wheels that are stiff in comparison.