440/65R28

Optitrac 131D R-1W
440/65R28
Technical data
Design Optitrac
Industry Classification R-1W
Tyre size 440/65R28
LI/SS 131D
FR/DW n/a
PR n/a
TL/TT TL
Tyre Width (mm) 422
Overall diameter (mm) 1280
Static Loaded radius (mm) 588
Rolling circumference (mm) 3890
SRI 625
Weight (kg) 82
Nominal Inflation Pressure (bar) 1.6
Maximum Load (kg) 1950
Tread Depth (mm) 44
Recom 'd Rim Width W14L
Other approved rims W13, W14L, W15L
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 2.6bar 2.8bar
0.6bar 70 1170 1320 1640 1775
0.8bar 65 1090 1285 1450 1800 1950†
1.0bar 50 1350 1525 1890 2050
1.4bar 40 1405 1590 1970 2135
1.6bar 30 1255 1480 1665 2070 2245
1.8bar 10 1635 1930 2175 2700 2925
2.0bar 10cycl 2185 2775 2955 3135 3315

0.6bar

70 km/h n/a
65 km/h 1090 kg
50 km/h n/a
40 km/h n/a
30 km/h 1255 kg
10 km/h 1635 kg
10cycl km/h n/a

0.8bar

70 km/h 1170 kg
65 km/h 1285 kg
50 km/h 1350 kg
40 km/h 1405 kg
30 km/h 1480 kg
10 km/h 1930 kg
10cycl km/h n/a

1.0bar

70 km/h 1320 kg
65 km/h 1450 kg
50 km/h 1525 kg
40 km/h 1590 kg
30 km/h 1665 kg
10 km/h 2175 kg
10cycl km/h 2185 kg

1.4bar

70 km/h 1640 kg
65 km/h 1800 kg
50 km/h 1890 kg
40 km/h 1970 kg
30 km/h 2070 kg
10 km/h 2700 kg
10cycl km/h 2775 kg

1.6bar

70 km/h 1775 kg
65 km/h 1950† kg
50 km/h 2050 kg
40 km/h 2135 kg
30 km/h 2245 kg
10 km/h 2925 kg
10cycl km/h 2955 kg

1.8bar

70 km/h n/a
65 km/h n/a
50 km/h n/a
40 km/h n/a
30 km/h n/a
10 km/h n/a
10cycl km/h 3135 kg

2.0bar

70 km/h n/a
65 km/h n/a
50 km/h n/a
40 km/h n/a
30 km/h n/a
10 km/h n/a
10cycl km/h 3315 kg

2.4bar

70 km/h n/a
65 km/h n/a
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

2.6bar

70 km/h n/a
65 km/h n/a
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

2.8bar

70 km/h n/a
65 km/h n/a
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.