自己量fitting選車架!!幫小弟double check吧!!

以下是小弟在網上做的FITTING表跟想入手的車規格表,小弟應該選的尺寸是50的沒錯吧,車店老闆說50,52都可以,很怕買錯阿!!

******************The Competitive Fit ****The Eddy Fit******The French Fit
Seat tube range c-c*****53.1 - 53.6**********4.3 - 54.8********56.0 - 56.5
Seat tube range c-t *****54.7 - 55.2**********55.9 - 56.4*******57.6 - 58.1
Top tube length********52.5 - 52.9**********52.5 - 52.9 *******53.7 - 54.1
Stem Length***********10.6 - 11.2 **********9.5 - 10.1 ********9.7 - 10.3
BB-Saddle Position******72.3 - 74.3**********71.5 - 73.5********69.8 - 71.8
Saddle-Handlebar*******50.6 - 51.2**********51.4 - 52.0********53.1 - 53.7
Saddle Setback*********4.8 - 5.2************6.0 - 6.4 *********5.5 - 5.9