The s works ground control 2bliss ready is an exceptionally versatile trail tyre weve optimized the tread using fe analysis resulting in a tyre that rolls fast and provides increased grip and traction in all conditions and for maximum performance the s works version found here features a supple casing and a lightweight overall construction casing 120 tpi bead foldable butyl wrapped bead 2bliss ready compound 60a 29 x 21 psi 35 65 approximate weight 605g