20mm super light bicycle carbon rims tubular 700c rims 1.EN standard 2.3k ud 3.T700 ... carbon 4.OEM monocoque 700c super light bicycle carbon rims tubular 20,36,50,56,86mm Brand ROSITModelBI-RIM-20TItem:Carbon ... covered by warranty monocoque 700c super light bicycle carbon rims tubular 20,36,50,56,86mm