A couple of days ago, this Mazda 6/Atenza installed BONOSS Forged Active Cooling Wheel Spacers, front/rear 20mm (0.8 inches), PCD 5×114.3, CB 67.1. These spacers are very suitable for this vehicle, improving control performance, meanwhile, achieving an excellent exterior. They fit those aftermarket wheels perfectly, thanks to the precise manufacturing. It also allows for installing smoothly without scratching the brake rotor. And the hub centric design connects the axle and the wheel firmly, meaning no vibrations, fewer stress loads and longer service life.