47是XXS, 49是XS, 52是S. 所以XXS長成這種樣子是滿正常的, 我也覺得它應該配650B輪圈的比例會比較好.身高 (英制) ==車架尺寸====車架大小4’10”- 5’2” = 47 cm- 48 cm = XX-Small5’2”- 5’6” = 49 cm- 50 cm = X-Small5’3”- 5’6” = 51 cm- 53 cm = Small5’6”- 5’9” = 54 cm- 55 cm = Medium5’9”- 6’0” = 56 cm- 58 cm = Large6’0”- 6’3” = 58 cm- 60” cm = X-Large6’3”- 6’6” = 61 cm- 63 cm = XX-Large一般而言, M(54cm)或L(56cm)尺寸的車架比例看起來會比較正常.