A smooth, fast rolling centerline transitions into small diamond shaped peaks and then more substantial shoulder knobs for traction under load TCS - WTB`s Tubeless Compatible System, sealant based tubeless system with improved bead shape Tubeless 700x34 622 TBLS - Fold Bk/Blk 75 396 60 TCS NoUPC/EAN/GTIN: 714401108219