How to take your measurements

Used as a general reference and to estimate every measurement you don't enter.

1. Barefoot, with heels, buttocks and shoulders against a wall, looking straight ahead.
2. Lay a book flat on your head, square against the wall, and mark the underside of the book in pencil.
3. Measure from the floor to the mark.

Common mistake. Measuring in the evening: you lose up to 1 cm during the day. Measure yourself in the morning.

The most important measurement: it sets saddle height, frame size and crank length.

1. Barefoot, in cycling shorts or underwear, back against the wall, feet 15 to 20 cm apart.
2. Slide a hardback book between your legs, one edge square against the wall.
3. Pull it up firmly, like the pressure of a saddle, and keep it level.
4. Mark the top of the book on the wall and measure from the floor to the mark.

Common mistake. Using the leg length of your trousers: it is 4 to 6 cm too short. Not pressing hard enough also gives too low a value.

For your height of 175.0 cm, the default estimate is 80.5 cm.

Together with the arm, it sets the distance to the bar: frame reach and stem length.

1. Keep the position and the book from the inseam measurement.
2. Find the sternal notch: the V-shaped hollow at the base of the neck, between the collarbones.
3. Measure vertically from the top of the book to that hollow.

Common mistake. Slouching or arching your back: stand up straight without straining.

For your height of 175.0 cm, the default estimate is 61.2 cm.

Together with the torso, it sets the distance to the bar and the shoulder angle.

1. Find the acromion: the bony point at the top of the shoulder, where the collarbone ends.
2. Let your arm hang by your side, slightly out, and grip a pencil in your fist.
3. Measure from the acromion to the pencil.

Common mistake. Measuring to the fingertips: you hold the bar in your palm, not with your fingertips.

For your height of 175.0 cm, the default estimate is 61.2 cm.

Refines saddle setback: for the same inseam, a long femur needs the saddle further back.

1. Standing, find the greater trochanter: the bony bump on the side of the hip that rolls under your fingers when you swivel your foot.
2. Find the knee joint line: the small hollow on the outside, between femur and tibia, easy to feel with the knee slightly bent.
3. Measure in a straight line between the two, along the outside of the thigh.

Common mistake. Starting from the hip crest (the top of the pelvis), 8 to 10 cm too high.

For your height of 175.0 cm, the default estimate is 42.9 cm.

Complements the femur: a proportionally long tibia needs a higher, more forward saddle.

1. Sitting, knee bent at a right angle, foot flat.
2. Start from the same knee joint line as for the femur.
3. Measure to the centre of the outer ankle bone: the bony bump on the outside of the ankle.

Common mistake. Measuring down to the floor: ankle height is already counted separately.

For your height of 175.0 cm, the default estimate is 42.2 cm.

Used to set the cleats and the ankle position in the model.

1. Bare foot flat on a sheet of paper, heel against the wall, body weight on the foot.
2. Mark the tip of the longest toe.
3. Measure from the wall to the mark. Do both feet and keep the longer one.

Common mistake. Going by shoe size: it varies between brands. Measure the foot itself.

For your height of 175.0 cm, the default estimate is 26.6 cm.

Gives the recommended handlebar width.

1. Shoulders relaxed, get someone to help: the measurement is taken across your back.
2. Find both acromions, the bony points at the top of the shoulders.
3. Measure in a straight line from one to the other.

Common mistake. Measuring around the shoulders or to the outside of the arms: what counts is the distance between the bones.

For your height of 175.0 cm, the default estimate is 40.3 cm.