Apico rear axle blocks are manufactured using a high-grade 6061-T6 Aluminium. CNC machined for a perfect fit every time and unrivalled precision when aligning the rear wheel. They all come with an anodised finish with anti-corrosion properties and Laser etched alignment marks to assist you when adjusting your chain. REAR AXLE BLOCK - YELLOW SUZUKI RM-Z 250 04-25 RM-Z 450 05-25