Wide knobs down the middle provide control under braking and L-shaped side knobs assure support when carving loose turns TERRA - 3C Maxx Terra is softer and offers more traction than 3C Maxx Speed, yet provides better treadwear and less rolling resistance than Maxx Grip EXO+ - EXO plus features Maxxis� EXO sidewall protection plus their silk shield bead to bead protection TR - Tubeless Ready - sealant required Tubeless 27.5x2.8 584 TBLS - Fold Bk/Blk 45 120 TERRA/EXO+/TRUPC/EAN/GTIN: 4717784034591