PFF80-1102G Front Wishbone Rear Bush Caster Adjustable has been designed around our unique on-car adjustable Nylon/Polyurethane Ball-Joint combination for more direct steering input and improved cornering and braking. The offset bore allows for +/- 0.5-1.0 of caster adjustment with the supplied spanner, to assist in the fine-tuning of the side-to-side caster settings. Vertical stiffness is increased considerably over standard rubber. Suitable for Road and Black Series applications. Using a Black 95A durometer ball moulded to an all-new offset stainless steel sleeve and machined nylon cups, this new and improved design maximises performance and articulation while retaining the benefit of on-car adjustability.All come pre-assembled with the ball and cups encapsulated within a plated metal outer shell secured by snap-rings and now include a 27mm spanner for adjustment.