High-quality, high-performance replacement fork springs A Progressive Suspension rate spring has the advantage of a rising rate resistance to compression The benefit is the spring can be soft enough at the start of the travel to offer a "plush" ride, yet firm enough at the end of the travel to soak up the big bumps Spring rates have been chosen to reduce front-end dive during braking, yet still provide excellent ride comfort Made in the U.S.A Incluido espaciador de 3" en PVC. Marca : PROGRESSIVE SUSPENSIONReferencia del fabricante : 11-1527Coeficiente dureza de muelle : 0,63 kg/mm - 0,89 kg/mm (35,00 lb/in - 50,00 lb/in)Color/acabado : NegroModelo : StandardNombre de producto : Fork SpringsPara diámetro tubos de horquilla : 39,00 mm (1,54")Para diámetro tubos de horquilla (métrico) : 39.00 mmPara diámetro tubos de horquilla (sist. imperial EE. UU.) : 1.54"Unidades : Pareja