Rays Gram Lights 57DR 15x8 4x100 +35mm Grace Silver IPGparts Gram Lights 57DR 15x8" +35mm 4 100 Grace Silver Wheel KamiSpeed.com Gram Lights 57DR 18x9.5 +38 5x100 Ceramic White Pearl Wheel. Speed Gram Lights 57DR 18X8.5 +37 5 100 GUN BLUE 2 HARDmotion Hyper Auto Gram Lights 57Dr Hub Bore Size at George Redden blog. This Gram Light 57DR is the most affordable wheel made by Rays Engineering. When making this design, Rays optimized the design and construct while still ensuring proper strength and rigidity.The 57DR is a cast wheel, so it will be heavier than Forged and other Flow Formed Wheels, however, this semi gloss black wheel is meant to withstand the abuse of the track and is just as strong if not stronger than any wheel out there.Cast one piece wheel meeting JWL + R Spec 1 standardsModeled after the 57D, but exclusive to the American MarketHigh rigidity high strength models suitable for RacingGloss BlackHigh speed air valve includedOptional center caps sold separatelyMade by Rays Co., Ltd. in Japan