Grayston Competition Wheel Spacer Kits are an economical way of increasing the track width on competition vehicles or for road vehicles where a heavier duty kit is required. Each kit consists of a pair of aluminium spacers and pack of extension studs or bolts (depending on application) available in a range of thread variations to suit most applications. Where studs are supplied, these are to replace the original studs, not to convert bolt applications.All kits contain 2 spacers and 8 studs or bolts for 4 hole pattern applications* and are available in the following options:3/8" UNF studs to suit (old) Minis etc: 10mm, 19mm or 25mm wide spacers7/16" UNF studs for Ford Escort, Cortina Mk1/2 etc: 10mm, 19mm, 25mm wide spacers12 x 1.5mm studs for Ford Escort Mk2 on, Cortina, Capri etc: 10mm, 19mm, 25mm wide spacers12 x 1.5mm studs for Vauxhall/Opel: 10mm, 19mm, 25mm wide spacers12 x 1.5mm bolts (60 degree taper seat) for BMW, Ford Escort, Fiesta, Vauxhall Astra etc: 10mm, 19mm wide spacers