280/70R18

Optitrac 114A8 R1W
280/70R18
Technical data
Design Optitrac
Industry Classification R1W
Tyre size 280/70R18
LI/SS 114A8
FR/DW n/a
PR n/a
TL/TT TL
Tyre Width (mm) 282
Overall diameter (mm) 849
Static Loaded radius (mm) 385
Rolling circumference (mm) 2544
SRI 410
Weight (kg) 31
Nominal Inflation Pressure (bar) 2.4
Maximum Load (kg) 1180
Tread Depth (mm) 32
Recom 'd Rim Width W9
Other approved rims W8,W10
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 2.2bar 2.4bar 2.6bar
0.6bar 50 445 530 590 750 820 885 965 1045 1075
0.8bar 40 487 580 650 825 900 975 1060 1150 1180†
1.0bar 30 545 650 730 925 1010 1090 1185 1290 1320
1.4bar 25 580 690 775 980 1070 1160 1260 1370 1405
1.6bar 15 645 765 860 1090 1190 1285 1400 1520 1560
1.8bar 10 770 915 1025 1305 1420 1540 1675 1815 1865
2.0bar 10cycl 830 1105 1240 1405 1530 1660 1800 1955

0.6bar

50 km/h 445 kg
40 km/h 487 kg
30 km/h 545 kg
25 km/h 580 kg
15 km/h 645 kg
10 km/h 770 kg
10cycl km/h n/a

0.8bar

50 km/h 530 kg
40 km/h 580 kg
30 km/h 650 kg
25 km/h 690 kg
15 km/h 765 kg
10 km/h 915 kg
10cycl km/h n/a

1.0bar

50 km/h 590 kg
40 km/h 650 kg
30 km/h 730 kg
25 km/h 775 kg
15 km/h 860 kg
10 km/h 1025 kg
10cycl km/h 830 kg

1.4bar

50 km/h 750 kg
40 km/h 825 kg
30 km/h 925 kg
25 km/h 980 kg
15 km/h 1090 kg
10 km/h 1305 kg
10cycl km/h 1105 kg

1.6bar

50 km/h 820 kg
40 km/h 900 kg
30 km/h 1010 kg
25 km/h 1070 kg
15 km/h 1190 kg
10 km/h 1420 kg
10cycl km/h 1240 kg

1.8bar

50 km/h 885 kg
40 km/h 975 kg
30 km/h 1090 kg
25 km/h 1160 kg
15 km/h 1285 kg
10 km/h 1540 kg
10cycl km/h 1405 kg

2.0bar

50 km/h 965 kg
40 km/h 1060 kg
30 km/h 1185 kg
25 km/h 1260 kg
15 km/h 1400 kg
10 km/h 1675 kg
10cycl km/h 1530 kg

2.2bar

50 km/h 1045 kg
40 km/h 1150 kg
30 km/h 1290 kg
25 km/h 1370 kg
15 km/h 1520 kg
10 km/h 1815 kg
10cycl km/h 1660 kg

2.4bar

50 km/h 1075 kg
40 km/h 1180† kg
30 km/h 1320 kg
25 km/h 1405 kg
15 km/h 1560 kg
10 km/h 1865 kg
10cycl km/h 1800 kg

2.6bar

50 km/h n/a
40 km/h n/a
30 km/h n/a
25 km/h n/a
15 km/h n/a
10 km/h n/a
10cycl km/h 1955 kg

† Maximum load at recommended speed and inflation pressure.