CHRONO - Recommended use: Road racing, MTB, Triathlon. - Cover: Real leather (black), Microfiber (colored). - Body: Nylon 6 and elastomer. - Standard frame: Stainless steel AISI 304 Ø 7.1mm. - Dimensions: 250 x 124mm. - Weight: 215g. - Recommended for sizes: XS, S, M. - For young cyclists and bikers or with small builds who like a hard seat.