Powerflex Polyurethane Bush kit for Rover 200 Series (Old Shape) 400 Series (Old Shape) Rear Anti Roll Bar Mount 19mm - PFR63-407-19 - 220 Turbo rear roll bar size is 19mm. - Bush Size: 19mm - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!