Special Tools
DescriptionPart NumberQty.
AIR SUSPENSION PUMP AND GAUGE
HD-34633
1

Refer to Table 1. The vehicle features air-adjustable rear suspension. Air pressure in the rear shocks may be adjusted to suit load requirements, riding style and personal comfort.
  1. Remove the right side cover.
  2. See Figure 1. Remove the cap from the air valve located behind the shock absorber.
    3. NOTE
    • Always add 21–35 kPa (3–5 psi) to the existing pressure before releasing air from the system to prevent oil from exiting the air valve. NEVER exceed 345 kPa (50 psi).
    • Do not exceed maximum GVWR or GAWR.
  3. Attach AIR SUSPENSION PUMP AND GAUGE (Part Number:HD-34633) to the air valve. Fill or release air from the shock absorber to the pressure specified for your load.
    4. NOTE
    The specified pressures are recommended starting points. Adjust pressure to suit load conditions, riding style and comfort desired. Less pressure does not necessarily result in a softer ride. Using pressures outside the recommended loading range will result in a reduction of available suspension travel and reduced rider comfort.
  4. Install cap on air valve.
  5. Install right side cover.
Figure 1. Rear Air Suspension Valve
Table 1. Rear Suspension Recommended Air Pressure
SHOCK LOAD
TOTAL WEIGHT
PRESSURE
PSI
kPa
Solo rider
up to 68 kg (150 lb)
5-10
34-69
68–91 kg (150–200 lb)
10-20
69-138
91–113 kg (200–250 lb)
20-30
138-206
136–136 kg (250–300 lb)
30-40
206-276
136 kg (300 lb) to maximum added weight allowed*
40-50
276-345
Solo rider with capacity luggage of 36 kg (80 lb)
up to 68 kg (150 lb)
25-30
172-206
68–91 kg (150–200 lb)
30-40
206-276
91–113 kg (200–250 lb)
40-50
276-345
113 kg (250 lb) to maximum added weight allowed*
50
345
Rider plus passenger
Any weight up to maximum added weight allowed*
50
345
Maximum loaded vehicle
Maximum added weight allowed*
50
345
Do not exceed 345 kPa (50 psi) rear shock pressure.
*Refer to Specifications → Specifications → Weights for maximum added weight allowed on the motorcycle.