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_________________________________________________________________________________________________________________ Revision Date: 12/30/15 | Revised by: Regina Templeton 1

Service Bulletin:Squeaking Secondary Idler

Effective Date: 12/14/2015 Models Affected:

IC7

SB Number

FB SB D02 01 Prepared by: Oliver Duke,

Christian Schramm

AFFECTED S/N:

Matrix IC7 units produced May 2015 - September 2015 (SN ending in 15E-15I).

SYMPTOM: Squeaking noise coming from the left/rear side of the bike when pedaling under load

(>50% resistance). The squeaking may not start until the bike has been in use for a few hours.

REASON: Due to an assembly problem, the poly V belt on the secondary idler is not at the

correct tension or the alignment with the pulley may be incorrect causing the belt to track incorrectly.

SOLUTION: Retrofit 1 - 2 spacer disks on the left side of the axel flywheel to adjust belt tracking

and tension the secondary belt to specification.

UPDATE PROCEDURE:

Required Parts

Belt Noise Spacer ZMS4005404

Required Tools

Allen key 3 mm

Allen key 5 mm

Allen key 6 mm

Allen key 8 mm

Tension meter

_________________________________________________________________________________________________________________ 2

Shroud disassembly

Remove shroud on the left side of the bike.

Visit our education portal for details.

http://www.teamicg.com/en/team-icg/education

Warning!

Once the shroud is removed from the bike, take care not to touch

any moving parts! Wait until the Flywheel and any other part of the

drive train have come to a complete stop before working on any

part of the bike to prevent serious injury!

Remove the left shroud.

1

Assemble the new nut (A) 900-01-04012-01, washer, serrated lock

washer and new flywheel axle distance sleeve right

(B) 150-03-00088-01 (Hand tighten)

Measure and note the belt tension using a sonic meter or smart phone

app.

2



(B) 150-03-00088-01 (Hand tighten)

_________________________________________________________________________________________________________________ 3

3

Turn the pedals in the forward direction for a few rotations and once

the flywheel has come to a complete stop, measure the distance

between the edge of the idler and the belt.

_________________________________________________________________________________________________________________ 4

Turn the cranks backwards multiple times and once the flywheel is at

a complete stop, measure the distance between the edge of the idler

and the belt.

The belt may move during the backwards rotation and if the difference

is greater than 1.5 mm (0.06“) please proceed to the next steps. If the

difference is less than 1.5 mm and a squeeking noise is coming from

bike, please contact ICG Service.

4



(B) 150-03-00088-01 (Hand tighten)

_________________________________________________________________________________________________________________ 5

Loosen the flywheel support arm bolt with a 6 mm Allen key.

1. Loosen 2 bolts with a 5 mm Allen key to relieve belt tension.

2. Once loosened, the idler will move down.

5

Lift seat and seat post assembly out of the bike.



(B) 150-03-00088-01 (Hand tighten)

6




(B) 150-03-00088-01 (Hand tighten)

1.

.

2.

_________________________________________________________________________________________________________________ 6

Pull out the bolt and insert the spacer disk between the frame and the

flywheel axel. Put the bolt back into it’s preveous position.

Remove axel bolt with a 5 mm Allen key.

7



8



Revision Date: 12/30/15 | Revised by: Regina Templeton

_________________________________________________________________________________________________________________ 7

Apply LOCKTITE 243 and tighten the counter sunk M8 bolt on the

axel to 20 Nm.

9



Tighten the axel bracket bolt to 20 Nm.

10




(B) 150-03-00088-01 (Hand tighten)

_________________________________________________________________________________________________________________ 8

Using a tension meter, set the tension to 155-165 Hz. and tighten the

screws on the bracket.

Insert an 8 mm Allen key into the idler bracket and push down to

increase tension of the belt.

11



12



_________________________________________________________________________________________________________________ 9

Before reassembling the shroud, measure how much the belt moves on

the idler by repeating steps 2 & 3.

Installation of 1 spacer should have decreased the amount of movement

of the belt on the idler to 1.5 mm or less.

If the belt movement isn’t less than 1.5 mm, a 2nd spacer must be

installed.

Test ride the bike at >50% resistance making sure the bike isn’t making

any noise. If the bike is still squeaking, contact ICG service.

Assemble the shroud.

See our service video on the following:

http://www.teamicg.com/en/team-icg/education

13




(B) 150-03-00088-01 (Hand tighten)

End of operation

Simulate a brief session and ensure that the bike is in good working

order.

14




(B) 150-03-00088-01 (Hand tighten)

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