Subrosa Designer 20″ tires are now available in a foldable high pressure Kevlar bead option. Click HERE to view our current tire selection. Subrosa pro Matt Ray signature Designer tires. These lightweight tires feature a super round tread design and a soft grippy rubber compound. These tires grip everything from the wood at the park to the cement on the streets. Kevlar bead. 2.4″ width. High pressure rated up to 110 psi. Weight: 22.8 oz. each.