Why choose BONOSS Wheel Spacers and Extended Bolts?
BONOSS Wheel Spacers compared with the previous product before the upgrade, the weight is reduced by about 20% on average, and the lightweight effect is more direct, it is designed with a special “disassembly slot”, easy to remove and install, improve work efficiency. The “knurling” design is used on the cylindrical surface of the wheel spacer, which can effectively increase the contact area with air and enhance the cooling effect. It uses a sealed design to prevent rainwater and debris from entering the wheel hub assembly.
Completely overturn! Many manufacturers claim that grade 10.9 is a high-level standard for the wheel bolts, but we are manufacturing a higher lever standard of bolts. That is grade 12.9. In addition, we did a lot to make this piece of wheel bolt being extraordinary. Firstly, the unique 12 petals head shape highlights the super forging one-time forming craftsmanship, which can not be presented in a later turning process. Second, we use the best quality material to manufacture it, forged with SCM440 High Strength Steel, better than SCM435, common 35CrMo, and 40Cr in the market. Third, the spacer structure effectively eliminates the bolts loosening and abnormal sound caused by the PCD hole coaxially deviation between hub and shaft head while driving.