Operating instructions
16
EN
etc. will be wrong. To use your VDO computer on two different bikes 
e.g. mountain bike and road bike you can enter two different wheel 
sizes. Measuring the wheel circumference:
step 1 Align the valve of the front wheel so that it is precisely vertical 
to the ground
step 2 Mark this point on the ground with a line (use chalk for 
example)
step 3 Push the bike one wheel rotation forward until the valve is 
again vertical to the ground.
step 4 Mark this point on the ground as well.
step 5 Measure the distance between the two marks. The result is 
your wheel circumference (=roll circumference).
step 6 Enter the wheel circumference as described below into your 
VDO computer.
ATTENTION: If you have selected KMH display then you must enter the 
wheel circumference in mm. If you have selected MPH display then 
enter the wheel circumference in inches. The values listed in table 
>>> P10 are approximate values. These values deviate depending on 
brand of tire, tire height and tire tread.
Setting wheelsize:
3 sec.  ç  Setting mode LANGUAGE SELECT
  ∂ ƒ  WHEELSIZE SET
  ‚   WHEELSIZE KMH-DISPLAY or WHEELSIZE MPH-
DISPLAY ( ∂ to change to mph)
  ‚  WHEELSIZE 1 … SET SIZE ?CONTINUE?
  ∂ ƒ   Set wheel size 1 in mm (keep button depressed for 
fast run-through)
  ‚  WHEELSIZE 1 ?SET OK?
  ‚   WHEELSIZE 1 SET DONE 
Automatic change to
  ∂ ƒ   Set wheel size 2 in mm (keep button depressed for 
fast run-through)
  ‚  WHEELSIZE 2 ?SET OK?
  ‚  WHEELSIZE 2 SET DONE
Automatic return to operation mode for TRIP DIST. If you do not want to 
set wheel size 2 then hold å to return to TRIP DIST operation mode.
Attention: Factory settings for bike 1 = 2155 mm and for bike 2 = 
2000 mm. If you do not enter wheel sizes the computer will work with 
the factory settings. The values measured in this manner for speed, 
distance, etc. can deviate from the actual values.
5.2. CHANGING THE WHEEL SIZE
With wheel size you change the computer from bike 1 (e.g. road bike) 
to bike 2 (e.g. mountain bike). The computer now works with the 
settings for bike 2.
3 sec.  ç  Setting mode LANGUAGE SELECT
  ∂ ƒ  WHEELSIZE CHANGE
 ‚
  ∂ ƒ  WHEELSIZE 1 or WHEELSIZE 2 ?SET OK?
 ‚ 
  ∂ ƒ  Changing the wheel size
  ‚  WHEELSIZE SET DONE
    Automatic return to TRIP DIST










