What does the ergomo^® pro system include?

 Which things should be kept in mind when buying an ergomo^® system?

 Handlebarsize
 Bottom bracket width (shell width)
 Interior thread ITA/BSC (see FAQ from the main page www.cyclepowermeters.com/faq-34-c.asp)
 Axle type (square/Octalink/ISIS)
 Double or triple crank

 Are there different lenghts of axis for ergomo^® pro available?

There are 2 lenghts of axis, one for double chain rings one for triple available for Octalink and ISO square type of axis. For ISIS there are 3 different lengths of axis available.

  Why is the training data transferred via cable?

To guarantee a measurement accuracy of +/- 0,5% we use a shielded cable system. This way we avoid disturbances by high tension power lines, traffic lights, railways and so on. This way the problem of time delayed transmission is excluded and being disconnected avoided. 

 Is the latest version of the Shimano Hollowtech II also compatible?

The hollowtech II is not support by the currently available ergomo^® systems. ergomo^® offers serveral differnt carbon cranks available in sizes 170 / 172,5 / 175 mm with 53/39 teeth or 50/34 teeth. These crank are compatible with ISO square Campagnolo standard or ISIS.

  Where is ergomo^® produced?

ergomo^® is produced completely in Germany.

 What about repair or replacement and how long does that take?

Should any part of the ergomo^® system be due for repair, return it to your retailer/local bike shop. The retailer will return it to the local ergomo^® distributor. After receipt a replacement will be sent to the bike shop within 48 hours.

 Where can the warranty conditions be found?

Warranty conditions can be downloaded under "Service / Downloads".

 What is the measuring range of ergomo^®?

The ergomo^® measures between 0 and 2500 watts with an accurancy of 99,5%.

 Are spare parts sold seperately too?

Following components can be bought seperately for the ergomo^®:

  ergomo^® datalink
  ergomo^® computer holder
  ergomo^® loading device with micro-contoller
  ergomo^® sensor tool
  ergomo^® coded Polar heartrate belt
  ergomo^® carbon crank set
  ergomo^® USB adapter
  ergomo^® sensor
  ergomo^® computer
  ergoRacer^® software

 How does the measurement principle work and is there a deficit in measuring only one leg´s work?

 Measurement principle:

ergomo^®  measures the torsion of the bottom bracket axle. This happens via 2 photo interrupters which are built into the bottom bracket. Both light sensors use 72 points of measurement per rotation to measure the torsion of the axis. The 72 points of measurement (360°/72 = 5°) are provided by perforated discs. These discs are connected tightly with the axis on the inner side of the bottom bracket. Is the axis twisted slightly due to the force pushing down on it, the perforated disc shifts in the same way. This shift in position is measured through the affore mentioned 72 points of measurement. So you see: the further the shift, the further the torsion meaning more pedalpower. With the simple formula of physics: Force = Pedalpower * Frequency one can easily measure the workload in watts during cycling.
Through the forces used while cycling and the way these forces are measured only the power used on the left pedal can be shown. The left pedalpower is transferred through the crank and the axis to the right crank, from where it uses the chain to get to the backwheel. The forces from the right side don´t lead to any torsion in the axle.

 Consequences for training:

The aim of watt aided training is to improve your personal skills. All improvements are relative differences to a certain starting level. These can be measured eiher on the left or right leg and the result will be approximately the same for healthy people. So measuring the watts on the left or right side brings no differences in the analysis.
Nearly everybody has different absolute power in the left and right leg (0 - 5% difference). As long as you always compare the values of the same leg the differences does not count nor have any effect on the training analysis. The ergomo^® system only measures the left leg as described above. The only reason where leg analysis are taken into account is to improve sportsman at the highest level or to help someone after injuries. These tests are always made on stationary bikes and not at mobile systems like the ergomo^®. If any differences are registered, they can be reduced through muscle training.

 Conclusion:

The ergomo^® series is a perfect partner for your training and competition because you can control improvements. Also you can target your personal goals. Analysis on discrepances between the two legs are just for optimizing your personal muscle constitution.

 Is the heart rate signal coded?
 Which chest belts can be used?

The delivery doesn´t include a chest belt. But ergomo^® pro and spin are both equipped with a coded Polar chip, so coded transmission is possible if using a polar chest belt. You may use coded and uncoded chest belts.

 How is the energy consumption taken into account in the ergomo^®?

Although energy can only be transformed it is common to speak of energy consumption. Energy consumption shows the amount of energy an athlete is spending. In this connection 1 kcal (Kilocalorie) corresponds with 4.1868 kJ (Kilojoule). The kJ displayed by the ergomo^® computer corresponds with the performed work. (work = power output x time).

A calculation example of the ergomo^®: 1420 kJ of performed work equals 346 kcal (1420kcal/ 4.1868). In order to perform that work the body actually needs more energy because it is not able to use all available energy for cycling. Only about 22% of available energy is used for cycling. The remaining 78% is consumed for metabolic reactions and transpiration. So, to perform the work that requires 1420 kJ an athlete has to ingest 1570 kcal by eating and drinking.

The kilojoules show what the body consumed to fuel the performance while the kilocalories indicate how much fuel has to be ingested to replace the spent fuel.