If you want to dial in handling, the Factory Pro M-AC3050RD 3mm x 5.0t Red Collar Set gives you compact, repeatable spacers for setup work. These collars are made to hold tolerance under regular track use, helping racers and club builders keep consistent geometry.
This six-piece set of red collars is aimed at hobbyists who need reliable spacing options. Each collar is machined to deliver uniform thickness so your suspension and drivetrain adjustments stay predictable lap after lap.
These collars suit a wide range of touring cars, buggies and other 3mm shaft applications. Their standard dimensions make them a handy addition to any toolkit when tweaking ride height, camber blocks or axle spacing.
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