Technical Data

Design Optitrac
Industry Classification R-1W
Tyre size 420/70R28
LI/SS 133D
FR/DW
PR NA
TL/TT TL
Tyre Width (mm) 429
Overall diameter (mm) 1347
Static Loaded radius (mm) 609
Rolling circumference (mm) 4069
SRI 650
Weight (kg) 96
Nominal Inflation Pressure (bar) 1.6
Maximum Load (kg) 2060
Tread Depth (mm) 44
Recom 'd Rim Width W13
Other approved rims W12, W14L

Load Data

Max Speed (Km/h)
70
65
50
40
30
10 cycl
10
Type load (kg) at various inflation pressures (kPa)
60kPa
70 km/h
65 km/h
1120
50 km/h
40 km/h
30 km/h
1290
10 cycl km/h
10 km/h
1680
80kPa
70 km/h
1200
65 km/h
1320
50 km/h
1385
40 km/h
1445
30 km/h
1520
10 cycl km/h
10 km/h
1980
120kPa
70 km/h
1545
65 km/h
1700
50 km/h
1785
40 km/h
1860
30 km/h
1955
10 cycl km/h
2740
10 km/h
2550
140kPa
70 km/h
1685
65 km/h
1850
50 km/h
1945
40 km/h
2025
30 km/h
2130
10 cycl km/h
2930
10 km/h
2775
160kPa
70 km/h
1875
65 km/h
2060*
50 km/h
2165
40 km/h
2255
30 km/h
2370
10 cycl km/h
3120
10 km/h
3090
200kPa
70 km/h
65 km/h
50 km/h
40 km/h
30 km/h
10 cycl km/h
3500
10 km/h

*Maximum load at recommended speed and inflation pressure.