Wheel hub centric-ring
All kind of size is available.
SPR’s wheel hub centric-ring is treated with 6061 aluminum alloy T6, and the anodizing protection is not easy to oxidize.
After modifying the aluminum rim, the wheel hub centric-ring can reduce the situation that the centric bore is not close enough to the inner circle of the aluminum rim.
Generally, the modification attaches the plastic hub centric- ring. Although it is cheaper, it is also easier to age and deforms, resulting in high speed of the car shaking, unstable, abnormal on tire and etc situation.
The aluminum alloy hub centric-ring can expand and contract with the aluminum ring (similar in the material), and it is not easy to age and deform.
As the high-grade aluminum ring is replaced, the car can be driven safer if upgrade the "SPR aluminum alloy hub centric-ring" at the same time.