320/90R50

Optitrac 148D R-1W
320/90R50
Technical data
Design Optitrac
Industry Classification R-1W
Tyre size 320/90R50
LI/SS 148D
FR/DW n/a
PR n/a
TL/TT TL
Tyre Width (mm) 310
Overall diameter (mm) 1864
Static Loaded radius (mm) 876
Rolling circumference (mm) 5716
SRI 925
Weight (kg) 124
Nominal Inflation Pressure (bar) 3.2
Maximum Load (kg) 3150
Tread Depth (mm) 41
Recom 'd Rim Width 10
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 1.0bar 1.4bar 1.8bar 2.0bar 2.2bar 2.4bar 2.6bar 2.8bar 3.0bar 3.2bar
0.6bar 70 1140 1500 1875 2150 2275 2345 2410 2550 2640 2730 2865
1.0bar 65 1250 1650 2060 2360 2500 2575 2650 2800 2900 3000 3150†
1.4bar 50 1325 1750 2185 2500 2650 2730 2810 2970 3075 3180 3340
1.8bar 40 1375 1815 2265 2595 2750 2835 2915 3080 3190 3300 3465
2.0bar 30 1440 1895 2370 2715 2875 2960 3045 3220 3335 3450 3620
2.2bar 25 1490 1965 2450 2810 2975 3065 3155 3330 3450 3570 3750
2.4bar 15 1675 2210 2760 3160 3350 3450 3550 3750 3885 4020 4220
2.6bar 10 1875 2475 3090 3540 3750 3865 3975 4200 4350 4500 4725
2.8bar 10cycl 2125 2805 3500 3810 4010 4250 4380 4505 4760 4930

0.6bar

70 km/h 1140 kg
65 km/h 1250 kg
50 km/h 1325 kg
40 km/h 1375 kg
30 km/h 1440 kg
25 km/h 1490 kg
15 km/h 1675 kg
10 km/h 1875 kg
10cycl km/h n/a

1.0bar

70 km/h 1500 kg
65 km/h 1650 kg
50 km/h 1750 kg
40 km/h 1815 kg
30 km/h 1895 kg
25 km/h 1965 kg
15 km/h 2210 kg
10 km/h 2475 kg
10cycl km/h 2125 kg

1.4bar

70 km/h 1875 kg
65 km/h 2060 kg
50 km/h 2185 kg
40 km/h 2265 kg
30 km/h 2370 kg
25 km/h 2450 kg
15 km/h 2760 kg
10 km/h 3090 kg
10cycl km/h 2805 kg

1.8bar

70 km/h 2150 kg
65 km/h 2360 kg
50 km/h 2500 kg
40 km/h 2595 kg
30 km/h 2715 kg
25 km/h 2810 kg
15 km/h 3160 kg
10 km/h 3540 kg
10cycl km/h 3500 kg

2.0bar

70 km/h 2275 kg
65 km/h 2500 kg
50 km/h 2650 kg
40 km/h 2750 kg
30 km/h 2875 kg
25 km/h 2975 kg
15 km/h 3350 kg
10 km/h 3750 kg
10cycl km/h 3810 kg

2.2bar

70 km/h 2345 kg
65 km/h 2575 kg
50 km/h 2730 kg
40 km/h 2835 kg
30 km/h 2960 kg
25 km/h 3065 kg
15 km/h 3450 kg
10 km/h 3865 kg
10cycl km/h 4010 kg

2.4bar

70 km/h 2410 kg
65 km/h 2650 kg
50 km/h 2810 kg
40 km/h 2915 kg
30 km/h 3045 kg
25 km/h 3155 kg
15 km/h 3550 kg
10 km/h 3975 kg
10cycl km/h 4250 kg

2.6bar

70 km/h 2550 kg
65 km/h 2800 kg
50 km/h 2970 kg
40 km/h 3080 kg
30 km/h 3220 kg
25 km/h 3330 kg
15 km/h 3750 kg
10 km/h 4200 kg
10cycl km/h 4380 kg

2.8bar

70 km/h 2640 kg
65 km/h 2900 kg
50 km/h 3075 kg
40 km/h 3190 kg
30 km/h 3335 kg
25 km/h 3450 kg
15 km/h 3885 kg
10 km/h 4350 kg
10cycl km/h 4505 kg

3.0bar

70 km/h 2730 kg
65 km/h 3000 kg
50 km/h 3180 kg
40 km/h 3300 kg
30 km/h 3450 kg
25 km/h 3570 kg
15 km/h 4020 kg
10 km/h 4500 kg
10cycl km/h 4760 kg

3.2bar

70 km/h 2865 kg
65 km/h 3150† kg
50 km/h 3340 kg
40 km/h 3465 kg
30 km/h 3620 kg
25 km/h 3750 kg
15 km/h 4220 kg
10 km/h 4725 kg
10cycl km/h 4930 kg

† Maximum load at recommended speed and inflation pressure.