Which frame size should I choose?

We offer four frame sizes for the CGO600:
S (460mm) for riders of (160-170cm) (4'9 ~ 5'6)
M (500 mm) for riders of (165-185cm) (5'4 ~ 5'9)
L (540 mm) for riders of (180-200cm) (5'9 ~ 6'6)
XL (580mm) for riders of >195cm (6'4)

We offer one frame size for the CGO800S:
M (480mm) 155 ~ 190 cm (5'1'' ~ 6'3'')

Please note that the suggested rider height is only for reference, proportions of the body might also be a factor when choosing a frame size. If you are still not sure about the size selection, please kindly contact us at support@tenways.com.