Paul Gage Tires - How To Choose?
Paul Gage Tires - How To Choose ?
Paul Gage urethane tires are more popular than ever. With the wide selection now available and new sizes coming out on a regular basis, it's now easier to find the right tire for your needs. And we're proud to say that they're also made right here in Canada. And they're really affordable too, making them a good choice for a large car collection.
But many customers are still not sure how to choose the right model when they're confronted with the long list of available models. Here's a simple guide that will serve as a starting point for your tire shopping.
Digits 1-2: the outer diameter of the tire in mm (when mounted on a 15mm wheel)
Digits 3-4: the maximum width of the tire in mm (including the rounded edge)
Digit 5: the width of the central rib in mm (usually 1.0mm in thickness, depending on the wheel)
When the model number is followed by letters, this is what the letters mean:
XD: designates a tire with a deeper center groove for wheels with a taller center rib (1.5mm)
XXD: designates a tire with an even deeper center groove for wheels with a very tall center rib (2.0mm)
LM: designates a tire with a larger center opening (lower profile sidewalls)
FF: designates an F1 series tire with the fatter sidewalls
SE: designates a tire with a new sidewall style designed to have more of a “street look” typical of bias ply and early radial tires
V: designates small vintage size tires with 2.0mm grooves (e.g. Scalex 50’s F1, MGB, 300SLR, CBD 14x6)
Diameter and Width
The center opening of most tires is around 11mm in diameter (13mm for LM tires). Of course, they stretch easily to fit over most wheels. Usually, you should choose a tire that is around 2mm more in width than the wheel itself, for the rounded sidewall to look good. But if you want to go narrower or wider, depending on what you're trying to achieve with your car, it works OK too. By choosing a larger diameter with the same width and central rib, you get a bigger tire (make sure it doesn't rub inside the wheels wells).
You can easily measure the width of the central rib on the wheel you want your tires to fit on. As a general rule, Scalextric usually uses 4mm ribs. For Slot.it, NSR and Racer wheels, you usually choose 5mm ribs. Most popular CB Design wheels also use a 5mm central rib but there are exceptions, like the 15x11 and 15x12 that use a wider 6mm rib (see our Wheel-Tire Chart below for reference). Smaller wheels like the 14x7 or 15x7 use 3 or 4mm central rib.
Carrera and Monogram cars usually have a thicker central rib on their wheels and that's when the XD and XXD tires come into play. The standard central rib is 1.0mm thick and fits most cars and aftermarket wheels.
Let's use the 21105 tire as an example. On a 15mm wheel, its outer diameter is 21mm. Since its width is 10mm, it fits perfectly on a 15x8 wheel. It could also fit on a 15x10 wheel but the tire contact patch will then be narrower than the wheel itself, even if the sidewalls will cover the entire wheel width. This tire could also be stretched to go on the 17x8 wheel but its outer diameter will then be larger than 21mm. All those wheels have a 5mm-wide central rib.
PGT or XPG?
PGT is the standard urethane compound from Paul Gage. If you want more performance, at the cost of a slightly higher wear rate, go for the Extreme compound (XPG) . Softer and stickier, it will give you the edge you need for a race win at your next start!