iBike Gen III Operating Instructions Manual page 10

"EST AERO" (estimated aero drag)
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Each rider has a different aerodynamic drag. The iBike estimates your aero drag based on
certain factors. Click the center button to start the EST AERO steps:
Enter your body height, then click the center button to continue;
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Enter your body weight only, then click the center button to continue;
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Finally, select the riding position you use most often: Hoods (hands clasped around
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the brakes); Drops (hands clasped around the bottom of the handlebars); or TT
(time trial—using aero bars).
The first choice is "HOOD NO". The word "NO" flashes, indicating that its setting can be
changed. The default choice is "NO", meaning that you do NOT ride on the hoods most
often. If you DO ride on the hoods most often, click the up arrow to select "YES". The
word "YES" flashes. To confirm your choice of HOOD YES, click the center button. The
word "DONE" flashes and the iBike advances to the "TILT" screen.
If you do NOT ride on the hoods most often, then leave the word Hood NO flashing, then
click the center button to confirm your choice of NO. The screen advances to DROP NO;
the word NO flashes.
In a similar manner, select NO or YES for drops, then click the center button; if you select
DROP NO, the screen advances to TT.
"TT NO" flashes; select NO or YES, then click the center button.
IMPORTANT: IF YOU SELECT "NO" FOR ALL THREE OPTIONS, THE VALUE CURRENTLY
STORED FOR AERODYNAMIC DRAG IS UNCHANGED.
IMPORTANT: "EST CDA" STEP ESTIMATES YOUR AERO DRAG. YOU CAN MEASURE YOUR
AERODYNAMIC AND FRICTIONAL DRAG WITH "COAST DOWN" CALIBRATIONS DESCRIBED
LATER IN THESE INSTRUCTIONS.
"TILT" calibration
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The Tilt calibration allows your iBike to measure hill slope with extremely high precision.
To perform the Tilt calibration, do the following:
1. Set your bike on reasonably level ground. Mark the spots where the wheels touch the
pavement.
TIP: DO NOT PERFORM A TILT CALIBRATION ON A ROAD WITH LOOSE STONES OR
JAGGED PAVEMENT. YOU WILL GET POOR RESULTS.
2. Hold the bike still and upright, with the front wheel pointed straight ahead.
3. Click the center button to start the tilt calibration process.
IMPORTANT: YOU MUST HOLD THE BIKE STILL DURING THIS STEP. AN EASY WAY TO
KEEP YOUR BIKE FROM MOVING IS TO WEDGE YOUR FOOT IN FRONT OF THE BACK TIRE.
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