Y1Rs Size Calculator

To figure out your Y1Rs size take your previous bike and take the following measurements:

A = from the centre of the bottom bracket to the centre of the saddle rail (not the seatpost clamp, let alone the surface of the saddle!)

B = from the centre of the saddle rail to the centre of the handlebar

C = from the centre of the handlebar to the centre of the front wheel hub

D = from the centre of the front wheel axle to the centre of the bottom bracket

E = from the wheel axle to the centre of the saddle rail

You can find this measurement on the geometry chart of your current bike, usually available online on the manufacturer’s website. It is the “length” of the frame, measured horizontally from the bottom bracket projection to the centre of the headset.

You can find this measurement on the geometry chart of your current bike, usually available online on the manufacturer’s website. It is the “height” of the frame, measured vertically from the bottom bracket projection to the centre of the headset.

You can find this measurement on the geometry chart of your current bike, usually available online on the manufacturer’s website. It is measured in degrees and is the angle of the head tube relative to the road.

Measured centre to centre. It is usually printed on the product. With an integrated cockpit, it is the handlebar length figure.

How much you raised the handlebar above the frame, in mm. If there is a cover above the headset, enter its height in the field below.

Needed when frame reach and stack are measured below the cover

Height on the stem where its length is measured. Leave 15 if you do not know it