Crank and foot

The crank changes how tight it gets at the top. The foot changes how high the saddle has to be.

Calculated for a person 178 cm tall with an 84 cm inseam on a size 58 race bike. With your measurements: enter them in the calculator. The handlebar stays where it is; each time the saddle moves to the middle of the knee band.

108°150°106°141°104°132°100°122°97°112°93°102°89°93°84°85°80°78°75°73°70°70°66°69°63°71°61°75°62°81°65°89°69°98°74°108°80°119°87°129°94°140°101°149°106°154°109°155°
Crank at the bottom · Foot angle −6° Crank 15° · Foot angle −11° Crank 30° · Foot angle −15° Crank 45° · Foot angle −19° Crank 60° · Foot angle −22° Crank 75° · Foot angle −24° Crank at the back · Foot angle −25° Crank 105° · Foot angle −24° Crank 120° · Foot angle −22° Crank 135° · Foot angle −19° Crank 150° · Foot angle −15° Crank 165° · Foot angle −11° Crank at the top · Foot angle −6° Crank 195° · Foot angle −1° Crank 210° · Foot angle 3° Crank 225° · Foot angle 7° Crank 240° · Foot angle 10° Crank 255° · Foot angle 12° Crank at the front · Foot angle 13° Crank 285° · Foot angle 12° Crank 300° · Foot angle 10° Crank 315° · Foot angle 7° Crank 330° · Foot angle 3° Crank 345° · Foot angle −1°
155 mm Start 180 mm
pointed (heel high) Start flat (heel low)

The angle when the crank is at the bottom. In the stroke the foot turns from there by up to 18.5° either way: more pointed at the back, flatter at the front.

Saddle height
748 mm Middle of the heights with 145 to 155° at the knee at the bottom: 738–758 mm.
Hip at the top
61.4° Angle between trunk and thigh when the crank is at the top. Hip demand: medium.
Knee at the top
69.1° The smallest knee angle of the revolution.
Knee in this position
150°141°132°122°112°102°93°85°78°73°70°69°71°75°81°89°98°108°119°129°140°149°154°155° The angle at the knee in the picture.

Slide the crank to 165 mm or the foot to pointed and see what changes at saddle, hip and knee.

Angles over one revolution

60°80°100°120°140°160°bottombacktopfrontbottomKneeHip

At the bottom the lines lie on top of each other, because the saddle goes to the middle of the knee band. Where they part, something changes.

The numbers as a table
Crank positionKneeKnee at the startHipHip at the start
0° (bottom)150°150°108°108°
15°141°141°106°106°
30°132°132°104°104°
45°122°122°100°100°
60°112°112°97°97°
75°102°102°93°93°
90° (back)93°93°89°89°
105°85°85°84°84°
120°78°78°80°80°
135°73°73°75°75°
150°70°70°70°70°
165°69°69°66°66°
180° (top)71°71°63°63°
195°75°75°61°61°
210°81°81°62°62°
225°89°89°65°65°
240°98°98°69°69°
255°108°108°74°74°
270° (front)119°119°80°80°
285°129°129°87°87°
300°140°140°94°94°
315°149°149°101°101°
330°154°154°106°106°
345°155°155°109°109°

Your measurements in the calculator → View in 3D → Reset the sliders