How to choose the size of your fixie / singlespeed bike frame?
When buying a new bike or frame, there always comes the fundamental question of which size to choose.
The decisive criterion is the size of the crotch , the size of the cyclist is indicative and provides a benchmark by proportionality.
For an urban bike, an adult should find their frame size by applying the formula:
Frame size = Inseam measurement in cm x 0.66
The bike is not just a calculation, the frame size given is indicative, it is better to try to know your frame size.
This gives us the following table:
|Rider size||Inseam size||Frame size|
|152 to 160cm||About 73cm||46cm|
|160 to 163cm||About 75cm||48cm|
|163 to 167cm||About 77cm||50cm|
|167 to 175cm||About 80cm||52cm|
|175 to 180cm||About 83cm||54cm|
|181 to 182 cm||About 86cm||56cm|
|183 to 189cm||About 90cm||58cm|
|189 to 192cm||About 93cm||60cm|
|192 to 200cm||About 97cm||62cm|
|200cm or more||About 100cm||64cm|
Frame size is actually the measurement from the bottom bracket spindle to the end of the seat tube .
The rest of the tubes of the bicycle are proportional to the latter, so we can refer to the size of the seat tube to choose a bicycle adapted to its size.