Purely mechanical work sexpent for this activityded (disregarding thermal efficiency and BMR). For bikes this can be regarded as a measure of chain wear - a standard bicycle chain will last about 100 MJ, for motorcycles about 1 GJ.
When translating power (watts) into specific power (watts per unit weight), a weight must be given. This is usually the weight of the entity providing a driving force. Note: VerticalClimb power is always computed using Total weight.
None
user
or GPS state