BMW AG Motorcycle (R 850 C, R 1200 C). Manual - part 25

34.19

Installing the ABS relay base

•

Bend up the contact interlock on the plug.

•

Insert the contact into the relay base.

e

 Caution:

The contact must be heard to engage and must be 
firmly located.

•

Insert the ABS relay with the FAG inscription fac-
ing the detent hook.

•

Insert a Torx screw into the ring shoe of the red 
engine cable.

L

 Note:

The crimp side is towards the screw head.

e

 Caution:

The same Torx screws must be re-used because of 
their self-locking effect.
When inserting the screws again, make sure that 
they pick up with the existing thread in the sheet-
metal element.
Failing this, vibration could cause the screws to 
work loose.

•

Place the ring shoe (with two cables) on the bore 
of the insert at the rear of the relay base, with the 
crimp side towards the relay base, and screw on 
together with the red engine cable, using the 
Torx screw.

•

Use the second Torx screw to secure the flat 
plug to the relay.

•

Press the contact interlock into the relay base at 
the side.

•

Push the relay base into the relay housing, at the 
same time pressing both engine cables into the 
left cable entries on the relay housing (red at bot-
tom, black at top).

•

Attach black engine cable to left threaded pin 
(M5) with crimp at back.

e

 Caution:

Make sure the cable is not at an angle, or its insula-
tion may be damaged.

•

Reconnect the 2-pin plug in the correct position, 
pushing the two halves fully together, and press 
the two wires into the center (smaller) cable en-
tries.

•

Push the two plugs for the connecting cable/wir-
ing harness onto the threaded pins with the 
crimp at the front.

•

Press the two cables into the remaining free ca-
ble entries. 

•

Tighten the nuts.

e

 Caution:

Always use new self-locking nuts.

•

Install a new cover (1).

e

 Caution:

When sliding the cover on, make sure that all cables 
are correctly located in their cable entries.

34.20

Removing and installing brake lines

Removing and installing front brake line

C340020

34.21

Removing and installing rear brake line

C340030

34.22

•

Drain fluid from brake system.

e

 Caution:

Do not allow brake fluid to come into contact with 
painted parts of the motorcycle, because brake fluid 
destroys paint.

•

Remove fuel tank.

•

Remove brake lines.

•

Install by following the above work instructions in 
the reverse order.

e

 Caution:

Renew sealing rings for brake line.
Attach brake line to master cylinder so that it cannot 
become kinked or abraded when the handlebar is 
turned.
Fill/bleed the brake system.

X 

Tightening torque:

Brake hose and brake line............................ 15 Nm
Bleed screws in front brake caliper ................ 7 Nm
Bleed screw on rear brake caliper .................. 4 Nm
Bleed screw on ABS unit................................ 9 Nm
Junction block at front frame.......................... 9 Nm
Junction block to slider tube .......................... 9 Nm

36.1

Contents

Page

36

Technical data 

................................................................................................................................3

Removing and installing front wheel 

.................................................................................5

Removing front wheel

 ...................................................................................................................5

Installing front wheel

 ......................................................................................................................5

Removing and installing wheel bearings

 ..............................................................................6

Removing/installing rear wheel 

............................................................................................8

Static balancing of front wheel/rear wheel 

....................................................................9

Checking front/rear wheel rim for runout 

.....................................................................10

Removing/installing spokes 

.................................................................................................11

Centering the wheel rim 

.........................................................................................................11

Centering lateral runout

 ..............................................................................................................11

36 Wheels and tyres

36.3

36

Technical data

R 850 C

R 1200 C

Rim size

Front

2.50 x 18 MT H 2

Rear

4.00 x 15 MT H 2

Max. vertical/lateral runout

mm (in) 1.3 (0.05)

Tyre size

Front

100/90 x 18 56H Tubeless

Rear

170/80 x 15 83H Tubeless

Tyre pressures (cold)

Solo

Front

bar (psi) 2.2 (31.9)

Rear

bar (psi) 2.5 (36.3)

With pillion passenger

Front

bar (psi) 2.5 (36.3)

Rear

bar (psi) 2.7 (42.0)

With pillion passenger and luggage

Front

bar (psi) 2.5 (36.3)

Rear

bar (psi) 2.9 (45.1)

36.5

Removing and installing front wheel

Removing front wheel

•

Place the motorcycle on the auxiliary stand, 
BMW No. 00 1 550.

•

Remove brake calipers.

L

 Note:

Do not apply handbrake lever with brake calipers re-
moved/front wheel removed.

•

Remove retaining screw (1).

•

Loosen clamping screws (2).

•

Remove quick-release axle.

•

Take out spacing bushing (3/4) and front wheel.

Installing front wheel

•

Install front wheel and spacing bushings.

•

Apply a light coating of Molykote paste to the 
quick-release axle/install it.

•

Tighten the retaining screw (1).

•

Install the brake calipers.

•

Compress the front fork firmly several times.

•

Tighten the clamp screws (2).

•

[ABS] Check sensor gap and adjust if necessary.

ABS sensor gap: .... 0.45...0.55 mm (1.77...2.22 in)

X 

Tightening torque:

Quick-release axle threaded connection ...... 30 Nm
Quick-release axle clamp screws ................. 20 Nm
Brake caliper at fork slider tube.................... 40 Nm

4

C360020

1

2

3

36.6

Removing and installing wheel 
bearings

•

Carefully lever out the shaft sealing ring with a 
screwdriver.

•

Remove the circlip.

•

Clamp a drift, BMW No. 36 5 513, into the vice 
and place the wheel on it with the wide bearing 
in contact.

•

Place a spacing ring, BMW No. 31 4 800, be-
tween the wheel hub at the right and the claws of 
the internal puller.

•

Heat bearing seat to 80 °C (176 °F).

•

Pull out the wheel bearing with counter-support 
22/1, BMW No. 00 8 572, and internal puller
21/4, BMW No. 00 8 573.

•

Press out spacing bushing (1) and wheel bear-
ing (2) with drift, BMW No. 36 5 530.

•

Degrease bearing seats.

•

Heat bearing seat to 80 °C (176 °F).

•

First insert wide bearing using drift,
BMW No. 36 5 512, and handle,
BMW No. 00 5 500.

C360031

00 8 572

RS360022

00 8 573

31 4 800

36 5 513

36 5 530

RS360023

2

1

RS360026

00 5 500

36 5 512