15th-Sep-22, 02:25 PM
https://slotcarcorner.com/pages/paul-gage-tires
The www.slotcarcorner.com link will take you to Paul Gauge the chart should also help
21125 XPG would be an example of a PG
21 mm in diameter 12mm wide with a center rib opening of 5mm in a 20 shore compound
Hope this helps

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