T the alumni All America Prospect Sep 17, 2009 1,482 0 0 Apr 13, 2012 #1 Been running on concrete for years and now it's starting to hurt my knees. Looking ar two treadmills. Sole F85 and the Nordic Trac 9500 pro. Both models are just about equal in price and have similar warranties. Anybody have any info? Thanks.
Been running on concrete for years and now it's starting to hurt my knees. Looking ar two treadmills. Sole F85 and the Nordic Trac 9500 pro. Both models are just about equal in price and have similar warranties. Anybody have any info? Thanks.
