MSW MINIAC Quick Start Manual Download Page 1

26441 3/18 | 85-000862_INST_C

MINIAC SPEED & CADENCE SENSOR INSTRUCTIONS

6400 WEST 105TH STREET // BLOOMINGTON, MN 55438 // 1-855-883-6563 // WWW.MSWBIKE.COM

Thank you for purchasing an MSW

®

 Speed and Cadence Sensor!  

At MSW

®

 we believe that having essential accessories makes a good  

ride great.

 

WARNING:

 

Cycling can be dangerous. Bicycle products should  

be installed and serviced by a professional mechanic. Never modify your 
bicycle or accessories. Read and follow all product instructions and warnings 
including information on the manufacturer’s website. Inspect your bicycle 
before every ride. Always wear a helmet.
For additional product and safety information go to: www.mswbike.com/safety.

COMPATIBILITY AND INTENDED USE

The MSW Speed and Cadence Sensor is compatible with 2.4g digital wireless 
cycling computers. They need to have the capability to accept speed and 
cadence data.

The MSW Miniac Speed and Cadence Sensor is intended for use 
on roads and paved trails as well as ASTM Condition 2 use.  
This includes smooth paved roads, unpaved and gravel roads, 
and trails with moderate grades where loss of contact with 
ground may occur but drops are less than 6" (15cm). 

INCLUDED PARTS

Please check that all the following items have been included with the cycle 
computer before starting.

A Sensor
B  Rubber shim
C.  Wheel magnet

D.  Cadence magnet
E.  Zip ties
F.  Rubber O-ring

INSTALLATION

MOUNTING THE SENSOR

The sensor is mounted on the non-driveside chainstay, just behind the bottom 
bracket. The distance between the computer head unit at the handlebar and 
the sensor should not exceed 150cm.
The larger part of the sensor reads the cadence magnet to register cadence, 
etc. The adjustable arm of the sensor unit registers speed, distance, etc.  
The larger part of the sensor faces the front of the bike, and the adjustable arm 
faces the back and sits along the inside of the chainstay. Loosen the knurled 
dial in front of the adjustable arm to rotate it in the optimal position (fig. 1).  
Do not tighten it until the optimal position has been determined.

Place the included rubber pad between the sensor and the chainstay. The sensor 
is attached using two included zip ties, but do not fully tighten them until the 
wheel and cadence magnets are in place, and the adjustments that yield the best 
readings are made between the sensor, sensor arm, and the magnets (fig. 2).
The distance between the cadence magnet and the sensor, and between  
the rear wheel magnet and the sensor arm should not exceed 3mm.

MOUNTING THE CRANK AND WHEEL MAGNETS

1.  Place the cadence magnet on the inside of the crank arm 2 to 3cm up the 

arm from the pedal spindle and zip tie it in place.

2.   Position the larger part of the sensor close enough to the crank arm that the 

required distance between it and the cadence magnet is achieved (fig. 3). 
Checking operation of the sensor is most easily done with the bike  
in a repair stand rather than doing it while riding.

3.  Using this sensor placement as a guide, position the wheel magnet in the 

approximate area that it will pass the sensor arm on the inside of the 
chainstay. The wheel magnet is tightened to the spoke by threading it into 
the magnet bracket that sits behind the spoke (fig. 4).

4.  Holding the larger part of the sensor in place with one hand, rotate the arm 

of the sensor so that the required distance between it and the wheel 
magnet is achieved.

Bracket

Nylo n Ties

Rubber

Bracket

Cycle Computer

Rubber Pad

Bracket

Cycle Computer

 

1–3mm

1–3mm

Spoke

Chainstay

(non-driveside)

Rear 

Wheel

Front 

Wheel

Cadence Sensor

Speed Sensor

Zip Tie

Cadence Magnet

Crank

Pedal

Cadence Sensor

1–3mm

Time

Average Speed

Maximum Speed

Distance

Odometer

Calorie Consumption

Average Cadence

Maximum Cadence

Trip Cadence

Unit

Tire size

Time

Time

Gender / Weight

ODO

Temperature

Gender / Weight

M (MODE): Next option
C: Next setting

[SET]: Change the value

Temperature °C/°F

H1 (Male)
H2 (Female)

WS: 0100–2999mm

KM/H+Kg+KM
M/H+Lb+KM

12H/24H

[SET] Weight:  20–150Kg
 

44–330 lb

3 seconds

Searching for 30 seconds

Press and hold mode 
key for 3 seconds

After 5 seconds of receiving
code from the sensor

PAIRED

NOT PAIRED

C BUTTON

MODE BUTTON

M

M

C

M/C

M/C

M/C

M/C

M/C

M

M

M

M

M

M

[SET]

[SET]

C

M/C Save and Exit

Hour (1–24)
Minute (0–59)
Second (0–59)
>M [SET]

C

C

C

C

PRESS

Not paired:
•  Check sensor alignment
•  Check battery

Figure 1

Figure 2

Bracket

Nylo n Ties

Rubber

Bracket

Cycle Computer

Rubber Pad

Bracket

Cycle Computer

 

1–3mm

1–3mm

Spoke

Chainstay

(non-driveside)

Rear 

Wheel

Front 

Wheel

Cadence Sensor

Speed Sensor

Zip Tie

Cadence Magnet

Crank

Pedal

Cadence Sensor

1–3mm

Time

Average Speed

Maximum Speed

Distance

Odometer

Calorie Consumption

Average Cadence

Maximum Cadence

Trip Cadence

Unit

Tire size

Time

Time

Gender / Weight

ODO

Temperature

Gender / Weight

M (MODE): Next option
C: Next setting

[SET]: Change the value

Temperature °C/°F

H1 (Male)
H2 (Female)

WS: 0100–2999mm

KM/H+Kg+KM
M/H+Lb+KM

12H/24H

[SET] Weight:  20–150Kg
 

44–330 lb

3 seconds

Searching for 30 seconds

Press and hold mode 
key for 3 seconds

After 5 seconds of receiving
code from the sensor

PAIRED

NOT PAIRED

C BUTTON

MODE BUTTON

M

M

C

M/C

M/C

M/C

M/C

M/C

M

M

M

M

M

M

[SET]

[SET]

C

M/C Save and Exit

Hour (1–24)
Minute (0–59)
Second (0–59)
>M [SET]

C

C

C

C

PRESS

Not paired:
•  Check sensor alignment
•  Check battery

Bracket

Nylo n Ties

Rubber

Bracket

Cycle Computer

Rubber Pad

Bracket

Cycle Computer

 

1–3mm

1–3mm

Spoke

Chainstay

(non-driveside)

Rear 

Wheel

Front 

Wheel

Cadence Sensor

Speed Sensor

Zip Tie

Cadence Magnet

Crank

Pedal

Cadence Sensor

1–3mm

Time

Average Speed

Maximum Speed

Distance

Odometer

Calorie Consumption

Average Cadence

Maximum Cadence

Trip Cadence

Unit

Tire size

Time

Time

Gender / Weight

ODO

Temperature

Gender / Weight

M (MODE): Next option
C: Next setting

[SET]: Change the value

Temperature °C/°F

H1 (Male)
H2 (Female)

WS: 0100–2999mm

KM/H+Kg+KM
M/H+Lb+KM

12H/24H

[SET] Weight:  20–150Kg
 

44–330 lb

3 seconds

Searching for 30 seconds

Press and hold mode 
key for 3 seconds

After 5 seconds of receiving
code from the sensor

PAIRED

NOT PAIRED

C BUTTON

MODE BUTTON

M

M

C

M/C

M/C

M/C

M/C

M/C

M

M

M

M

M

M

[SET]

[SET]

C

M/C Save and Exit

Hour (1–24)
Minute (0–59)
Second (0–59)
>M [SET]

C

C

C

C

PRESS

Not paired:
•  Check sensor alignment
•  Check battery

Figure 3

Bracket

Nylo n Ties

Rubber

Bracket

Cycle Computer

Rubber Pad

Bracket

Cycle Computer

 

1–3mm

1–3mm

Spoke

Chainstay

(non-driveside)

Rear 

Wheel

Front 

Wheel

Cadence Sensor

Speed Sensor

Zip Tie

Cadence Magnet

Crank

Pedal

Cadence Sensor

1–3mm

Time

Average Speed

Maximum Speed

Distance

Odometer

Calorie Consumption

Average Cadence

Maximum Cadence

Trip Cadence

Unit

Tire size

Time

Time

Gender / Weight

ODO

Temperature

Gender / Weight

M (MODE): Next option
C: Next setting

[SET]: Change the value

Temperature °C/°F

H1 (Male)
H2 (Female)

WS: 0100–2999mm

KM/H+Kg+KM
M/H+Lb+KM

12H/24H

[SET] Weight:  20–150Kg
 

44–330 lb

3 seconds

Searching for 30 seconds

Press and hold mode 
key for 3 seconds

After 5 seconds of receiving
code from the sensor

PAIRED

NOT PAIRED

C BUTTON

MODE BUTTON

M

M

C

M/C

M/C

M/C

M/C

M/C

M

M

M

M

M

M

[SET]

[SET]

C

M/C Save and Exit

Hour (1–24)
Minute (0–59)
Second (0–59)
>M [SET]

C

C

C

C

PRESS

Not paired:
•  Check sensor alignment
•  Check battery

Figure 4

For off-road 

riding and 

jumps less than

6" (15cm)

B

A

C

D

F

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