Roll Forward
Stem
Wheel
Circumference
FIGURE 6: ROLL OUT METHOD
vert inches to millimeters, multiply inches by 25.4). Use this number to replace the default (default values are 2073 for wheel one, and 2134 for wheel two) when programming your computer. (See figure 6)
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You may also use the following
Generic Tire Size Chart
(This chart is for
26 | X 1.75 | 2140 |
26 | X 2.0 | 2074 |
26 | X 2.1 | 2090 |
650C X 20 | 1945 | |
700C X 26 | 2124 | |
700C X 38 | 2170 |
Programming the circumference:
To enter the tire circumference number, select the odometer (ODO) mode and hold down the "FUNCTION" button for three seconds. The display will now show the currently selected tire size for wheel option #1. (See figure 7)
If necessary scroll through the prepro- grammed tire sizes by tapping both
FIGURE 7: CIRCUMFERENCE PROGRAMMING SCREEN
the "MODE" and "FUNCTION" buttons simultaneously until the display shows a
digit to the right. Repeat the process until all four digits are entered as your tire circumference. Press the "FUNC- TION" button once to select it and enter the circumference for wheel option #2. Follow the same procedure to program the wheel #2 tire size and tap the "FUNCTION" button to exit cir- cumference programming mode.
4. Setting the Clock
Your SpeedZone Comp features two clocks, one analog and one digital. The hands of the analog clock will be set automatically to correspond to the digital one. To access the "clock mode" press and hold the "MODE" button for three seconds. To set the clock, press the "FUNCTION" button for three seconds. The display will flash either twelve (12:) or
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