Home » Primex unveils WEARMAX skid steer line Retail Primex unveils WEARMAX skid steer line November 11, 2002 No Comments Order Reprints Primex Tire Corp.'s new WEARMAX skid steer tire line is designed for demolition sites, foundries and other high-impact settings.The tires are currently available in two sizes: 31x5x7 and 33x6x8. You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why.