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BMW Motorcycle (R1100RT, R1100RS, R850/1100GS, R850/1100R). Manual - part 30

23.40

Installing gearbox

•

Check centering of driving plate with centering
pin, BMW No. 21 3 680.

•

Screw in guide pins (oiled), BMW No. 23 1 820,
and push the gearbox carefully on to them.

Tightening torque:

Gearbox to engine block .............................. 22 Nm

•

Installation is performed in the reverse order to
the removal procedure.

23 1 820

RS230011

31.1

Contents

Page

Technical Data

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

Removing and installing telescopic fork

.........................................................................7

Removing and installing telescopic fork without fork bridge

.......................................7

[RS] Removing and installing fork bridge

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

[GS/R/RT] Removing and installing fork bridge

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

Removing and installing pot-type joints ...............................................................................................9
Removing and installing ball thrust bearing .......................................................................................10

Removing and installing slider tube bridge

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

Removing and installing ball joint ......................................................................................................11

[RS] Checking ball joint friction

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

[GS/R/RT] Checking ball joint/ball thrust bearing friction

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

Assembly specification for telescopic fork: ........................................................................................12

Dismantling/reassembling telescopic fork

..................................................................13

Dismantling telescopic fork

......................................................................................................13

Assembling telescopic fork

......................................................................................................14

Measuring telescopic fork

.....................................................................................................14

Check slider tube bridge ...................................................................................................................14
Checking runout of fixed tube ...........................................................................................................14

Removing and installing leading link

...............................................................................15

Dismantling/reassembling leading link

..........................................................................15

Removing and installing front suspension strut

........................................................16

[R] Removing and installing steering damper

............................................................16

Removing and installing ball head

.........................................................................................16

Checking the steering damper

...............................................................................................16

31 Front fork

31.2

31.3

Technical Data

R 1100 RS

Front suspension

Type

BMW Telelever with external suspension strut

Telescopic fork

Front wheel caster in normal-load position

(with rider weighing 85 kg (187.425 lb))

mm (in)

111 (4.37)

Steering lock angle

Total suspension travel

mm (in)

120 (4.7244)

Fixed tube surface

Hard chrome plate

Extl. dia. of fixed fork tubes

mm (in)

35,0 (1.3779)

Maximum permissible runout
of fixed fork tube

mm (in)

0,4 (0.01574)

Telescopic fork oil – approved grades

BMW telescopic fork oil

Fill quantity in each fork leg

l (Imp. pints)

0.470 (0.827)

Suspension strut

Type

Suspension strut with coil spring and twin-tube,
gas-filled shock absorber

31.4

Technical Data

R 1100 RT

Front suspension

Type

BMW Telelevr with external suspension strut

Telescopic fork

Front wheel caster in normal-load position

(with rider weighing 85 kg (187.425 lb))

mm (in)

122 (4.803)

Steering lock angle

Total suspension travel

mm (in)

120 (4.7244)

Fixed tube surface

Hard chrome plated

Extl. dia. of fixed fork tubes

mm (in)

35,0 (1.3779)

Maximum permissible runout
of fixed fork tube

mm (in)

0,4 (0.01574)

Telescopic fork oil – approved grades

BMW telescopic fork oi

Fill quantity in each fork leg

l (Imp. pints)

0.470 (0.827)

Suspension strut

Type

Suspension strut with coil spring and twin-tube,
gas-filled shock absorbe

31.5

Technical Data

R 850 GS

R 1100 GS

Front suspension

Type

BMW Telelever with external suspension strut

Telescopic fork

Front wheel caster in normal-load position

(with rider weighing 85 kg (187.425 lb))

mm (in) 115 (4.5275)

115 (4.5275)

Steering lock angle

° 42

Total suspension travel

mm (in) 190

190

Fixed tube surface

Hard chrome plated

Extl. dia. of fixed fork tubes

mm (in) 35,0 (1.3779)

35,0 (1.3779)

Maximum permissible runout
of fixed fork tube

mm (in) 0,4 (0.01574)

0,4 (0.01574)

Telescopic fork oil – approved grades

BMW telescopic fork oil BMW telescopic fork oil

Fill quantity in each fork leg

l (Imp. pints) 0.470 (0.827)

0.470 (0.827)

Suspension strut

Type

Suspension strut with 5 spring preload settings,
twin-tube, gas-filled shock absorber

31.6

Technical Data

R 850 R

R 1100 R

Front suspension

Type

BMW Telelever with external suspension strut

Telescopic fork

Front wheel caster in normal-load position

(with rider weighing 85 kg (187.425 lb))

mm (in) 127 (5)

127 (5)

Steering lock angle

° 37

Total suspension travel

mm (in) 120 (4.7244)

120 (4.7244)

Fixed tube surface

Hard chrome plated

Extl. dia. of fixed fork tubes

mm (in) 35,0 (1.3779)

35,0 (1.3779)

Maximum permissible runout
of fixed fork tube

mm (in) 0,4 (0.01574)

0,4 (0.01574)

Telescopic fork oil – approved grades

BMW telescopic fork oil BMW telescopic fork oil

Fill quantity in each fork leg

l (Imp. pints) 0.470 (0.827)

0.470 (0.827)

Suspension strut

Type

Suspension strut with twin-tube gas-filled shock
absorber

31.7

Removing and installing telescopic
fork

Removing and installing telescopic fork
without fork bridge

•

Remove mudguard.

•

Remove front wheel.

•

[ABS] Detach sensor.

•

Detach brake line retainer.

•

[R] Heat steering damper mount at slider tube
bridge to max. 120 °C, and take it of.

•

Heat leading link mount at front to max. 120 °C
and unscrew.

•

[RS] Loosen fixed-tube clamp at upper fork
bridge and pull telescopic fork out downwards.

•

[R/RT] Take off the handlebar.

•

[GS/R/RT] Slacken off the threaded connection
for the fixed tube at the upper fork bridge, hold-
ing the hexagon on the fixed tube to prevent it
from turning; pull telescopic fork out downwards.

•

Install in the reverse order of work.

•

Tighten ball joint at leading arm with socket
wrench insert and internal hexagon,
BMW No. 31 5 600, on leading link.

Caution:

To prevent grease from escaping and the ingress of
dirt, ensure that sleeve is correctly located on ball
joint.

•

[ABS] Check sensor gap and adjust if necessary.

ABS – Sensor gap: ......................... 0.50...0.55 mm

................................................ (0.0197...0.0217 in)

Tightening torque:

Ball joint at leading link:
(clean thread + Loctite 2701)...................... 130 Nm

Mount, fixed tube/fork bridge
[RS] ............................................................ 22 Nm
Threaded connection, fixed tube/fork bridge
(free from oil or grease) ...........................................
[GS/R/RT] ................................................... 45 Nm
Handlebar to fork bridge
[R/RT] ......................................................... 21 Nm
Steering damper at slider tube bridge mount
(clean thread + Loctite 2701)
[R] ............................................................... 20 Nm
Steering damper mount at slider tube bridge
(clean thread + Loctite 2701)
[R] ................................................................. 9 Nm

31 5 600

120

2701

GS310021

GS000410

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