Mixed Service · 20" Tube Type
Truck & Bus Radial
D841
10.00R20 and 11.00R20 TT at 930 kPa. The spec most of the world still runs.
Twenty-inch tube-type on a V-rim is not a legacy size outside North America and Europe — it is the working standard across a large part of Africa, the Middle East, South and Southeast Asia. D841 is the lug pattern for it: 930 kPa / 135 psi, up to 3,550 kg per tyre, built for unpaved approach roads, quarry feeders and construction sites rather than motorway miles.
01 Specification
D841 — every listed size.
Nominal values. Overall diameter ±2 %, section width ±4 %.
| Size | PR | Type | Rim | O.D. mm | Sect. mm | SLR mm | Depth mm | Tread mm | Infl. single kPa/psi | Infl. dual kPa/psi | Load single kg/lb | Load dual kg/lb | LI / SI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10.00R20 | 18 | TT | 7.50Vx20 | 1054 | 271 | 489 | 15.5 | 216 | 930/135 | 930/135 | 3250/7160 | 3000/6610 | 149/146/K |
| 11.00R20 | 18 | TT | 8.00Vx20 | 1085 | 286 | 503 | 16 | 223 | 930/135 | 930/135 | 3550/7830 | 3250/7160 | 152/149/K |
02 Where it belongs
Best fitted to
- On/off-road and construction haulage
- Unpaved and broken-surface routes
- Markets standardised on 20" tube-type
03 What the numbers mean
- Highest pressure here
- 930 kPa / 135 psi on both sizes.
- Tube type
- TT construction on 7.50V×20 and 8.00V×20 rims.
- Load to 3,550 kg
- 11.00R20 18PR at 152/149K.
04 Elsewhere in the range
Other patterns.
Steer / All Position
D601
Five-rib highway pattern. The widest size and load coverage in the range.
View pattern
02
Steer
D603
Four wide ribs and the deepest steer tread here — 17 mm on a 236 mm face.
View pattern
03
Drive
LS751
Closed-shoulder drive block. 20.5 mm — the deepest tread in the range.
View pattern
Enquiries
Tell us the axle, the size and the volume.
Send the sizes you are quoting and the quantity you need, and you get back availability, ply-rating options and terms — not a brochure.
- Pattern and size availability
- Ply rating and load/pressure options
- Packing, container loading and lead time
Prefer plain email? info@rocklandtiresupply.com