Technical Data

Design Optitrac
Industry Classification R-1W
Tyre size 420/85R38
LI/SS 149D
FR/DW
PR NA
TL/TT TL
Tyre Width (mm) 438
Overall diameter (mm) 1678
Static Loaded radius (mm) 770
Rolling circumference (mm) 5097
SRI 800
Weight (kg) 156
Nominal Inflation Pressure (bar) 2.4
Maximum Load (kg) 3250
Tread Depth (mm) 48
Recom 'd Rim Width W14
Other approved rims W13, W15L

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
1550
50 km/h
40 km/h
30 km/h
1780
10 cycl km/h
10 km/h
2325
80kPa
70 km/h
65 km/h
1800
50 km/h
1890
40 km/h
1970
30 km/h
2070
10 cycl km/h
10 km/h
2700
100kPa
70 km/h
1885
65 km/h
2060
50 km/h
2165
40 km/h
2255
30 km/h
2370
10 cycl km/h
3060
10 km/h
3090
120kPa
70 km/h
2100
65 km/h
2300
50 km/h
2415
40 km/h
2520
30 km/h
2645
10 cycl km/h
3565
10 km/h
3450
140kPa
70 km/h
2355
65 km/h
2575
50 km/h
2705
40 km/h
2820
30 km/h
2960
10 cycl km/h
3925
10 km/h
3865
160kPa
70 km/h
2560
65 km/h
2800
50 km/h
2940
40 km/h
3065
30 km/h
3220
10 cycl km/h
4170
10 km/h
4200
180kPa
70 km/h
2740
65 km/h
3000
50 km/h
3150
40 km/h
3285
30 km/h
3450
10 cycl km/h
4440
10 km/h
4500
200kPa
70 km/h
2810
65 km/h
3075
50 km/h
3230
40 km/h
3365
30 km/h
3535
10 cycl km/h
4760
10 km/h
4615
220kPa
70 km/h
2880
65 km/h
3150
50 km/h
3310
40 km/h
3450
30 km/h
3620
10 cycl km/h
4855
10 km/h
4725
240kPa
70 km/h
2970
65 km/h
3250*
50 km/h
3415
40 km/h
3560
30 km/h
3735
10 cycl km/h
5030
10 km/h
4875
260kPa
70 km/h
65 km/h
50 km/h
40 km/h
30 km/h
10 cycl km/h
5195
10 km/h

*Maximum load at recommended speed and inflation pressure.