GT made out of natural rubber for budget in mind, EXP for all out racing, made out of our own Hybrid rubber, Slick for Prepped surface, Treaded for dusty or rough surface track or street racing. (or when you want to be look really cool) Part # | Name | TEMPS | Surfaces | Note | S40145 | GT45 Slick | 60F, Lower | Smooth surface | Sealed Tracks | S40245 | GT45 Treaded | 60F, Lower | Dusty or rough | Casual Racing | S40150 | GT50 Slick | Above 61F | Smooth surface | Sealed Tracks | S40250 | GT50 Treaded | Above 61F | Dusty or rough | Casual Racing | | | | | | S40145E | EXP45 Slick | 65F, Lower | Smooth surface | | S40245E | EXP45 Treaded | 65F, Lower | Dusty or rough | not for Sealed tracks | S40150E | EXP50 Slick | Above 65F | Smooth surface | | S40250E | EXP50 Treaded | Above 65F | Dusty or rough | not for Sealed tracks | S40155E | EXP55 Slick | Above 95F | Smooth surface | | S40255E | EXP55 Treaded | Above 95F | Dusty or rough | not for Sealed tracks |
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