Technical Data

Design Optitrac
Industry Classification R-1W
Tyre size 420/85 R28
LI/SS 139D
FR/DW
PR NA
TL/TT TL
Tyre Width (mm) 418
Overall diameter (mm) 1425
Static Loaded radius (mm) 0
Rolling circumference (mm) 4207
SRI 0
Weight (kg) 0
Nominal Inflation Pressure (bar) 1.6
Maximum Load (kg) 2430
Tread Depth (mm) 0
Recom 'd Rim Width W15L
Other approved rims W13-W14L

Load Data

Max Speed (Km/h)
65
50
40
30
10 cycl
10
Type load (kg) at various inflation pressures (kPa)
60kPa
65 km/h
1320
50 km/h
40 km/h
30 km/h
1520
10 cycl km/h
10 km/h
1980
80kPa
65 km/h
1550
50 km/h
1630
40 km/h
1695
30 km/h
1780
10 cycl km/h
10 km/h
2325
100kPa
65 km/h
1750
50 km/h
1840
40 km/h
1915
30 km/h
2010
10 cycl km/h
2635
10 km/h
2625
120kPa
65 km/h
2000
50 km/h
2100
40 km/h
2190
30 km/h
2300
10 cycl km/h
3235
10 km/h
3000
140kPa
65 km/h
2240
50 km/h
2350
40 km/h
2455
30 km/h
2575
10 cycl km/h
3455
10 km/h
3360
160kPa
65 km/h
2430*
50 km/h
2550
40 km/h
2660
30 km/h
2795
10 cycl km/h
3680
10 km/h
3645
180kPa
65 km/h
50 km/h
40 km/h
30 km/h
10 cycl km/h
3905
10 km/h
200kPa
65 km/h
50 km/h
40 km/h
30 km/h
10 cycl km/h
4130
10 km/h

*Maximum load at recommended speed and inflation pressure.