BMW Motorrad R 1200 GS Rider's Manual page 166

Frame and suspension
Front suspension system Central spring strut with twin-tube
9
Spring travel (bump)
164
Spring travel (rebound)
Total suspension travel
Fixed tube diameter
Front wheel castor in
normal-load position
Rear suspension system
Spring travel (bump)
Spring travel (rebound)
Total suspension travel
(at wheel)
Swinging arm length
R 1200 GS
shock absorber, spring preload
adjustable in nine stages
4.8 in (122 mm)
2.7 in (68 mm)
7.5 in (190 mm)
1.6 in (41 mm)
4.3 in (110 mm)
Central spring strut with single-
tube shock absorber with
progressive damping. Spring
preload and rebound damping
steplessly variable
5.3 in (135 mm)
2.6 in (65 mm)
7.9 in (200 mm)
21 in (535 mm)