General description maXpeedingrods' B1 series Street Coilovers Suspension Kit is designed for VW Golf MK1, Jetta MK1, and Scirocco models, offering an ideal solution for those looking to replace old struts while enhancing handling performance. This kit features adjustable height settings, allowing for a customized ride height while maintaining original equipment (OE) ride quality. Technical specifications Adjustable height: Front Lowering 30-90mm (depending on vehicle model) Adjustable height: Rear Lowering 30-85mm (depending on vehicle model) Spring rate Front: 8 kg/mm (448 lbs/in) Spring rate Rear: 8 kg/mm (448 lbs/in) Spring length Front: 170 mm Spring length Rear: 170 mm Front spring inner diameter: 62 mm Rear spring inner diameter: 62 mm Spring preload advised: 7-10 mm Shock type: Twin tube Damping: Preset damping Warranty: 2 years Compatibility and accessories Compatible with VW Golf MK1 / Rabbit models (1975-1984) Compatible with VW Jetta MK1 models (1980-1984) Compatible with