Instruction Manual for
Bike Brain
TM
Digital Cycling Computer
Read through this entire instruction manual BEFORE using the
Bike Brain
Digital Cycling Computer.
We’re dedicated to bringing you well-designed products that make living fun and easy.
We stand behind all our products and warrant this to be free from defects in workmanship
and materials for 1 year from the date of purchase.
For questions please consult our website
ProtocolNY.com.
Mounting the Sensor Bracket (Fig. 1)
The sensor bracket attaches to the left side of the front wheel
fork of the bicycle. Loosen the plastic screw on the bracket,
hold the bracket at the desired place on the fork, and close
the loop. Use the rubber piece to adjust the diameter for a
snug fit. Tighten the screw.
Unscrew the magnet from the holder. Attached the magnet to
a spoke on the wheel making sure the magnet aligns with the
sensor with a clearance of less than .2 inches. Screw the
holder back onto the magnet.
PARTS
A. Counter
B. Plastic screw
C. Sensor bracket
D. Mounting shoe
E. Wheel magnet
F. Cable ties
G. Rubber piece
A
B
C
D
E
F
G
MEASURES
Current speed
ODO
Odometer (total distance)
DST
Trip distance
MXS
Maximum speed
AVS
Average speed
TM
Trip time
R
Wheel rotation per minute
Wheel magnet
.2 in
Rubber
(will prevent slipping)
Fig. 1
Sensor
Plastic screw
Mounting the Counter (Fig. 2)
Loosen the screw on the mounting shoe and attach to the
handlebars. Rubber pieces are also provided to provide a
secure fit if the clamp cannot close completely or if it slides on
the handlebar. Tighten the screw. The mounting shoe can
attach to either the right or the left side of the handlebar
depending on the user’s preference.
Slide the counter onto the shoe until it snaps firmly into place.
Push forward in the opposite direction to remove.
Fig. 2
Securing the Wires (Fig. 3)
Route the wire up the front wheel fork, using the provided
cable ties to secure. The wire must not hang loosely however
it must have enough slack to allow the bike to move freely.
Any remaining wire can be wrapped around the front brake
cable and to the handlebar. Any excess wire should be
looped and secured to the bicycle frame with a cable tie.
Counter
Fig. 3
Select m/h or km/h display
Press the LEFT button to select m/h or km/h. Press the RIGHT button to confirm.
Wheel Size
After setting the m/h or km/h display, numbers will flash on the screen. Press the LEFT button
continually to enter the wheel’s circumference. To scroll through the numbers faster, press and hold the
LEFT button. Press the RIGHT button to confirm.
The counter reads in centimeters so if you are measuring the wheel’s diameter in inches, you must
multiply the measurement by 2.54.
Example: 20”D x 2.54 = 50.8cm
To calculate circumference, multiply the wheel’s diameter by 3.14. Round up or down to the nearest
whole number.
Example: 50.8cmD x 3.14 = 159.51. Round to 160 and enter into the counter.
A quick reference chart is below for common wheel sizes:
Diameter
Circumference (in centimeters)
20”
160
22”
176
24”
192
26”
207
26.5”
211
26.8”
214
27”
216
28”
224
Odometer
The counter will automatically default to 0000.0 on the odometer. If you have distance already traveled
that you would like to add to the counter, press the LEFT button to change the number and the RIGHT
to move to the next digit. Press the RIGHT button to confirm once completed.
If you are starting out with zero distance traveled, press the RIGHT button continually to confirm the
distance as 0000.0
Recording Cycle Movements
Press the RIGHT button to enter the main screen and then press the LEFT button until “km/h” or “m/h”
start to flicker. The counter will now record Distance (DST), Max Speed (MXS), Average Speed (AVS),
Elapsed Time (TM), and Rotation (R).
NOTES: - The counter will not record when it is in Odometer (ODO) or Clock modes.
- The counter will continue to record in DST, MXS, AVS, TM, and R modes.
Reading the Values
While you are recording, the screen will automatically set to scan mode () and flash through the
different values to display the current stats for those values every 4 seconds. If you would like to check
a specific value, press the RIGHT button to scroll to that value.
The screen will remain on that value until you press the RIGHT button to enter scan mode again.
Auto on/off
To preserve the batteries, the counter will automatically switch to and remain in Clock mode after 2
minutes of inactivity. To switch back to reading the values press either button once.
Speedometer
Current speed is indicated where circled. During the ride a ‘^’ or ‘
˅
’ will
display to indicate that the current speed is higher or lower than the
average speed (AVS). The current speed will be indicated in all modes.
0D0
8
16
33.60
km/h
Odometer (ODO)
The screen will indicate the total distance traveled where circled.
To check the tire circumference entered, press the left button once
while in this mode. To clear the tire circumference and total distance,
press the LEFT button for 6 seconds and the screen will return to the
“Select k/m or m/h” screen. Follow the previous steps to set up again.
0DO
8
16
33.60
km/h
Trip Distance (DST)
The screen will indicate the current trip distance traveled where circled.
To clear the current trip distance, press the LEFT and RIGHT button at
the same time. The computer will clear the records of DST, MXS, AVS,
and TM while leaving the odometer intact.
DST
8
16
2.1
km/h
Maximum Speed (MXS)
The screen will indicate the maximum speed on the current trip
where circled.
MXS
8
16
6.7
km/h
Average Speed (AVS)
The screen will indicate the average speed on the current trip
where circled.
AVS
8
16
8.1
km/h
Trip Time (TM)
The screen will indicate the amount of time that has passed on the
current trip where circled. The counter will record only the time actually
spent riding and will not record if the bicycle is stopped.
8
16
0: 12: 18
km/h
TM
Rotation per Minute (R)
The screen will indicate how many wheel rotations are made on the
current trip where circled.
R
8
16
12.8
km/h
Clock (24H)
To set the clock, you must be in the clock mode. Press the LEFT and
RIGHT button at the same time and the digits indicating the hour will start
to flicker. Press the LEFT button to scroll to the correct hour and then
press the RIGHT button. The digits indicating minute will start to flicker.
Press the LEFT button to scroll to the correct minute. Press the RIGHT
button to confirm and go back to the main screen.
The screen will indicate time where circled.
8
16
12:18
km/h
Freeze Frame – Checking Stats
To check the stats at the end of your bike ride, press the LEFT button and the display will lock. The
“km/h” or “m/h” will stop flickering and the counter will stop recording.
Press the RIGHT button to scroll through the different values: DST, MXS, AVS, TM, and R.
To erase the memory and start over, press the LEFT and RIGHT button at the same time. The DST,
MXS, AVS, and TM values will go back to zero.
Troubleshooting
Problem
Solution
No speedometer reading
Improper magnet/sensor alignment
Counter is not properly attached to mounting screw
Slow display response
Temperature exceeds operating limits (32° - 131°F)
Dark display
Temperature too hot or display exposed to sun for too long
Display starts to fade
Poor battery contacts or dead battery
No display
Dead battery
On Off
2052-6CM_bike brain_IM