57NR 1-Piece Cast Alloy Wheel

The Gram Lights 57NR wheel is a performance-oriented, 1-piece cast alloy wheel featuring a traditional 10-spoke design engineered for superior stress dispersion and enhanced road feedback. RAYS has incorporated a new 'C-FORM' design between the spokes, significantly increasing rigidity and ensuring the spokes maintain a perfect circular form even under extreme forces. The wheel's inner rim strength is further bolstered by RAYS' 'H.S.PLUS' (High Strength+) construction method, which carefully controls tension and compression stress without adding weight. RAYS' patented 'Advanced Machining Technology' (A.M.T.) is also utilized, allowing for intricate designs to be precisely engraved on the wheel's surface, including brand logos and credits, adding a sophisticated, three-dimensional aesthetic. For enhanced grip and to prevent wheel and tire slippage under high traction conditions, a knurling finish is applied to the bead seat. This feature minimizes traction loss and maintains tire balance. The 57NR meets JWL+R Spec 1 safety standards and includes an aluminum air valve (No.21 Inside aluminum air valve BK). Its specifications include an 18x8.5 size, a 5x114.3 PCD, a +38 offset, and a 73.1mm bore, finished in a striking Glass Black. While the EH2+ Hump feature is noted for its benefit in drift competitions by minimizing bead dropping risk with lower tire pressures, it is specifically available only for 18x9.5 and 19x10.5 sizes, not this 18x8.5 model.