Ergonomic Adjustments

Body Scanning CRM bike

Body Scanning CRM in actionThe Body Scanning CRM bike was developed in cooperation with orthopaedic specialists; physiotherapists; cyclists; and engineers. The system allows physical measurements to be taken without the need for direct physical contact between sales representatives and clients, seeking to find their ideal ergonomic bicycle seat position and to calculate their perfect frame geometry.

 

How and what is measured?

Measuring and adjusting the frame geometry A bicycle finely tuned and adjusted precisely to your body’s ergonomic needs will increase your power, while decreasing your health risks. We recommend your bicycle dealer adjust the ergonomic settings of your bicycle as accurately as possible, based on the correct analysis of your individual biometric data and the bicycle’s designated purpose.

Adjusting the saddle height  with the  Bike Adjustment DeviceSaddle height

It all starts with the saddle measurement and it’s correct height. It’s measured with an adjustment gauge called the bike adjustment device. The measurement is taken from the centre of the crank screw up to the upper- edge of the saddle . Or with the ergonomic step saddle, up to the upper edge of the step.

Saddle OffsetSaddle offset

The saddle offset or saddle position is crucial for the right feel and power while pedalling. The saddle offset is measured vertically from the button bracket to the front of the saddle The angle between the force affecting the foot pedal and the force affecting the crank arm is determined by the saddle offset This angle must be optimised for the full crank arm rotation (360 degrees). The saddle offset is measured with the adjustment gauge (Bike Adjustment Device).

Distance saddle - handlebarDistance saddle – handlebar

The correct distance between the saddle and the handlebar will depend on upper body length and the seat position. It’s measured from the front end of the saddle to the handle bar grip. This distance often determines the choice of the bicycle frame. The distance between the saddle and the handle bar is either measured with the adjustment gauge (Bike Adjustment Device) or it is calculated with the top tube calculator, in the event that the frame only exists as geometrical information in a catalogue.

Handlebar heightHandlebar height

The handlebar height is adjusted relative to the saddle height. In this case there is a lot of tolerance; with three basic back postures: comfortable; mezzo and athletic, with many positions in between. These three seat positions, always correspond to the chosen bicycle category. The handlebar height is measured with the adjustment gauge (bike Adjustment Device)

Recommended adjustments of  Body Scanning CRM SoftwareFrame height

The frame height is a tangential issue. Primarily, the three contact points where you touch the bicycle are important for the right ergonomic feel. When there were still diamond frames with horizontal top tubes, the frame height (usually measured from the button bracket to the centre of the top tube) was the indicator for the over-all frame size. In our times of sloping top tubes and spring mounted seat posts, the top tube length has emerged as the vital factor. (See also distance saddle – handlebar.) Your Body Scanning bicycle trader can give you more information.

Bicycle-GeometryCrank arm length

A longer crank arm basically means more torque will be transferred to the bottom bearing. The difference between 175 mm and 177.5 mm means an approximate 1.5%n increase in torque of approx. 1.5%. That suggests the longer the crank, the more efficiency, which is basically correct – however, the physical abilities of the cyclist and his leg length must be considered in the equation. With mountain bikes, ground clearance is an additional factor, which is why crank lengths of max. 175 mm are offered in this category. The standard-crank length with trekking and city bikes is 170 mm. In this case, the efficiency factor is less important then comfort. A racing cyclist with competitive ambitions requires other values yet again.

Sitting positions - comfortable, moderate, athleticSeat positions

The ergonomics of every cyclist are different. For example, it is important for the the ergonomics of the city cyclist to have a comfortable seat; a, good view of the traffic; and quick mounting and dismounting ability at stops. By comparison, the racing cyclist depends on a streamlined seat, high pedalling frequency and ideal efficiency for perfect ergonomics.