iBike Newton+ Operating Instructions Manual page 23

6. To begin the Coast Down procedure, click the center button.
7. Before going to the coast down screen your Newton+ will check to see how
recently you performed the "Tilt" and "Cal Wind" steps. If these steps
were performed more than 30 minutes prior to the start of your Coast
Downs, you will be required to do them again. This assures maximum
accuracy of your Coast Downs. The word "Start" will flash after performing
Tilt and Cal Wind calibrations.
8. After completing the above steps, click the center button to start the Coast Down
ride.
9. The Coast Down screen shows the word "Fast", and your current bike speed appears
in the display.
10. When this screen is shown, pedal your bike faster BUT INCREASE SPEED IN A
LEISURELY MANNER, making sure you remain in your usual ride position.
11. As you go faster the horizontal bar in the screen will start to fill. Your goal is to get
to 20 mph (32KPH).
12. Once you've reached full speed, the word "coast" will appear. Stop pedaling
IMMEDIATELY; you will begin to slow down due to aerodynamic and frictional drag.
13. Make sure you remain in your usual riding position during the coast down.
14. As you coast the bike will slow down and the Newton+ will measure your drag
coefficients (aerodynamic and frictional).
TIP: COAST DOWN DATA IS COLLECTED BETWEEN THE SPEEDS OF 18 MPH AND 8 MPH.
15. Do not pedal your bike, apply the brakes, or make abrupt moves with the front
wheel during the coast down.
16. As the bike slows the horizontal bar will empty and your bike speed will drop.
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