CatEye PW-TR100 Power Unit - Manual (Page 60)

60
PW-TR100 : POWER UNIT
Reference Guide
Distance / Event Power range (% of MAP)
3 km TT 89 - 91 %
4 km TT 88 - 91 %
16.1 km TT 75 - 81 %
40.2 km TT 72 - 77 %
80.5 km TT 64 - 72 %
161 km TT 60 - 68 %
Can race performance power be estimated?
Although race performance can be down to mental fortitude, as much as physical ability, a power – time
curve exists, i.e., the shorter an event is the more power you can produce, and conversely the longer an
event is the less power you produce (sprinting for a few seconds, versus riding steady and continuously
for 10-hrs!). For endurance-based events, an estimate of the power output that can be achieved for a
variety of distances is shown below.
Table 2
Because events such as road races, and criteriums depend on both drafting ability as well as power to
mass ratio and that the power you produce is much more variable, it is a little harder to predict power for
these events, but, in general power required for road races etc., will be on average less than the power
required to ride a TT of similar duration.