Jaguar XJR Spare Tire Sizes

The Jaguar XJR has used 5x108mm (5 x 4.25") and 5x4.75" bolt pattern variations from 1995 to 2019 along with tire diameters ranging from 26.0" to 27.3" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicles with larger brake calipers and anti-lock brakes or traction control systems. Tire diameter as well as wheel diameter clearance have been taken into account for the specific Jaguar XJR years and options. In this case, 165/70R17, 145/70R18 and 145/60R20 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.