620/75R30

Optitrac 163A8/B R-1W
620/75R30
Technical data
Design Optitrac
Industry Classification R-1W
Tyre size 620/75R30
LI/SS 163A8/B
FR/DW n/a
PR n/a
TL/TT TL
Tyre Width (mm) 636
Overall diameter (mm) 1661
Static Loaded radius (mm) 757
Rolling circumference (mm) 5034
SRI 800
Weight (kg) 269
Nominal Inflation Pressure (bar) 2.4
Maximum Load (kg) 4875
Tread Depth (mm) 59
Recom 'd Rim Width DW20B
Other approved rims n/a
Load data
Type load (kg) at various inflation pressures (kPa)
Max Speed (Km/h)
Type load (kg) at various inflation pressures (kPa)
0.6bar 0.8bar 1.0bar 1.4bar 1.6bar 1.8bar 2.0bar 2.4bar 2.8bar 3.2bar
0.6bar 50 2650 3000 3750 3875 4375 4500 4875
0.8bar 40 2240 2650 3000 3750 3875 4375 4500 4875†
1.0bar 30 2395 2835 3210 4015 4145 4680 4815 5215
1.4bar 10 3360 3975 4500 5625 5815 6565 6750 7315
1.6bar 10cycl 4505 5910 6290 6665 6590 7545 8040

0.6bar

50 km/h n/a
40 km/h 2240 kg
30 km/h 2395 kg
10 km/h 3360 kg
10cycl km/h n/a

0.8bar

50 km/h 2650 kg
40 km/h 2650 kg
30 km/h 2835 kg
10 km/h 3975 kg
10cycl km/h n/a

1.0bar

50 km/h 3000 kg
40 km/h 3000 kg
30 km/h 3210 kg
10 km/h 4500 kg
10cycl km/h 4505 kg

1.4bar

50 km/h 3750 kg
40 km/h 3750 kg
30 km/h 4015 kg
10 km/h 5625 kg
10cycl km/h 5910 kg

1.6bar

50 km/h 3875 kg
40 km/h 3875 kg
30 km/h 4145 kg
10 km/h 5815 kg
10cycl km/h 6290 kg

1.8bar

50 km/h 4375 kg
40 km/h 4375 kg
30 km/h 4680 kg
10 km/h 6565 kg
10cycl km/h 6665 kg

2.0bar

50 km/h 4500 kg
40 km/h 4500 kg
30 km/h 4815 kg
10 km/h 6750 kg
10cycl km/h 6590 kg

2.4bar

50 km/h 4875 kg
40 km/h 4875† kg
30 km/h 5215 kg
10 km/h 7315 kg
10cycl km/h 7545 kg

2.8bar

50 km/h n/a
40 km/h n/a
30 km/h n/a
10 km/h n/a
10cycl km/h 8040 kg

3.2bar

50 km/h n/a
40 km/h n/a
30 km/h n/a
10 km/h n/a
10cycl km/h n/a

† Maximum load at recommended speed and inflation pressure.