The metric or SI (Le SystÃ¨me International d'UnitÃ©s) system of units has many derived units from the seven base units. A derived unit would be a unit that is a combination of base units. Density would be an example where density = mass/volume or kg/m3. Many derived units have special names for the properties or measurements they represent. This table lists eighteen of these specialized units along with their basic unit factors.
Cadence (cycling) In cycling, cadence (or pedalling rate) is the number of revolutions of the crank per minute; this is the rate at which a cyclist is pedalling/turning the pedals. Cadence is directly proportional to wheel speed, but is a distinct measurement and changes with gearingâwhich determines the ratio of crank rpm to wheel rpm.
In summary: 1  Focus your training to develop speed (wattage) at your race-specific cadence-the cadence you plan to race at. 2  Supplement this race-specific training with informal low cadence/out of the saddle work to build this resiliency above and expand your range of comfortable cadences. 3  Bring the proper gearing to the race! 4  Bring these fast, ...