PFF5-1301GFX features CNC-machined aluminium outer shells with a fixed offset bore, which ensures wheel geometry is maintained during kerb strikes and under the extreme lateral forces generated by slick tyres and circuit racing. This is supplied with a Black 95A durometer bush with a knurled bore, increasing stiffness (+60%) and durability over the original equipment (OE) rubber bush. This combination results in minimal wishbone stiction and significantly reduced deflection. This bush increases negative camber by 0.75  , achieving reliable, grip-focused wheel geometry tested and approved by the Mini Challenge, perfectly complementing our PFF5-1302BLK / PFF5-1302GBLK Front Arm Rear Bush for those serious about track and race car builds, especially when combined with adjustable top mounts.