8 material differences · fewer than 12
Tractor oneBührer 61351975–1978No measured PTO figureTractor twoLamborghini R-1356 DT1980–1984No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (40%); the drive differs (2WD / 4WD; 4WD); they were not built in overlapping years (1975–1978; 1980–1984). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
8 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 6135 | R-1356 DT | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 133 hp | 133.2 hp | — |
| Engine declared | — | Hürlimann H-1106/12 | — |
| Displacement declared | — | 6.84 L | — |
| Maximum torque declared | 317 lb·ft · 430 N·m | 331 lb·ft · 449 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 18.6 mph · 30 km/h | +20% R-1356 DT |
| Clutch declared | Pedal operated dry Buerhrer twin disc clutch as driving clutch | Pedal-operated dry single-disc clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 10.3 gpm · 39.0 L/min | 12.7 gpm · 48.0 L/min | +23% R-1356 DT |
| Pressure declared | 2,845 psi · 196 bar | — | — |
| Rear PTO speeds declared | 540/800 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 8,488 lb · 3,850 kg | 11,905 lb · 5,400 kg | +40% R-1356 DT |
| Maximum permissible mass declared | 14,330 lb · 6,500 kg | — | — |
| Wheelbase declared | 103.5–107.5 in · 2,630–2,730 mm | 113.3 in · 2,877 mm | differs |
| Length declared | 166.5 in · 4,230 mm | 175.2 in · 4,450 mm | — |
| Width declared | 81.9 in · 2,080 mm | 89.6 in · 2,275 mm | +9% R-1356 DT |
| Ground clearance declared | 15.0–15.7 in · 380–400 mm | 19.3 in · 490 mm | differs |
| Fuel tank declared | — | 126.8 qt · 120.0 L | — |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
Bührer 6135 sources
- Source: Traktorenlexikon, “Bührer 6135”
- Source: Traktorenlexikon, “Bührer 6135 (A)”
Lamborghini R-1356 DT sources
- Source: Traktorenlexikon, “Lamborghini 1356 DT”
- Source: Traktorenlexikon, “Hürlimann H 6130”