RADAELLI CERCHI s.r.l Factory articles cycle, moped and motorbyke   FS 38:   Size of rims Inner Section Outer section Circumference Diameter FS 38 1.20X16 30.5 38 1274 405.6 FS 38 1.20X17 30.5 38 1361 433.4 FS 38 1.20X19 30.5 38 1521 484.2