Pontiac G3 Spare Tire Sizes
The Pontiac G3 has used a 4x100mm bolt pattern for all models from 2009 to 2010 along with tire diameters ranging from 22.7" to 23.0" 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 Pontiac G3 years and options. In this case, a 125/70R16 temporary spare tire is the recommendation for all applications.