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This wheel is 2.5lbs heavier than our standard 15x7 6UL wheel with a special offset just for Spec Miata Racing and lowest legal weight for the class at 13.1 pounds. The extra material to make legal weight is focused where Spec Miata racers need it for maximum durability in true wheel to wheel action. 15x7
Low pressure cast, flow formed monoblock construction
T6 heat treated
54.1mm center bore
500kg max load rated
Double valve hole design
Durable painted and clear coated finish
Cap included which is chrome with carbon logo
Valves not included
Brian's Application Notes: Racers loved the original 6UL Spec Miata wheel and it won the 2008 runoffs and they sold used for MORE than original prices. Long term feedback from that original design resulted in the new ultra strong 'gladiator' version. The wheel these are based on is roughly 10.6 lbs so they had the luxury of choosing exactly where to put the extra 2.5 lbs of material necessary to meet legal Spec Miata minimum weight so it actually helps Spec Miata owners win races and seasons on budget by surviving impacts that would break other choices. The barrel and flange area are nearly twice as thick as a regular 6UL wheel with the sole focus being to increase the wheel resistance to the specific type of damage typical in Spec Miata.