BMW R 1200RT 2016 Rider's Manual page 182

11
Rear wheel
Rear wheel design
180
Rear-wheel rim size
Rear tire designation
Load index for rear tire
Rear wheel load at unladen weight
Permissible rear wheel load
Permissible rear-wheel imbalance
Tire inflation pressures
Tire pressure, front
Tire pressure, rear
z
Aluminum cast wheel
5.5" x 17"
180/55 - 17
At least 70
298 lbs (135 kg)
max 701 lbs (max 318 kg)
max 1.6 oz (max 45 g)
36.3 psi (2.5 bar), with tire cold
42.1 psi (2.9 bar), with tire cold