Bührer GM-29 Super-Six (A) vs Steyr 90

10 material differences · fewer than 12

Tractor one

1968–1975

No measured PTO figure

Tractor two

1968–1974

No measured PTO figure

Which should you choose?

Read our verdict on the GM-29 Super-Six (A) and the 90 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

10 material differences · 3 fields identical or within 5%, which is not counted as material

Bührer GM-29 Super-Six (A) and Steyr 90, field by field
Field	GM-29 Super-Six (A)	90	Gap
Engine
Engine power, claimed claimed	98.6 hp	88.8 hp	+11% GM-29 Super-Six (A)
Engine declared	Mercedes-Benz OM 352	Steyr WD-610	differs
Displacement declared	5.67 L	5.98 L	+5% 90
Maximum torque declared	188 lb·ft · 255 N·m	263 lb·ft · 357 N·m	+40% 90
Transmission
Top speed declared	13.7 mph · 22 km/h	15.5 mph · 25 km/h	+14% 90
Clutch declared	—	Dry Fichtel & Sachs single-plate clutch	—
Hydraulics & hitch
Pump flow declared	5.0 gpm · 18.8 L/min	8.9 gpm · 33.6 L/min	+79% 90
Three-point lift at ends declared	5,401 lb · 2,450 kg	6,393 lb · 2,900 kg	+18% 90
Rear PTO speeds declared	540 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	6,195 lb · 2,810 kg	7,562 lb · 3,430 kg	+22% 90
Wheelbase declared	98.4 in · 2,500 mm	99.8 in · 2,534 mm	—
Length declared	157.5 in · 4,000 mm	158.1 in · 4,015 mm	—
Width declared	74.4 in · 1,890 mm	82.3 in · 2,090 mm	+11% 90
Height declared	66.9 in · 1,700 mm	85.0 in · 2,160 mm	+27% 90
Ground clearance declared	16.5 in · 420 mm	—	—
Turning radius, braked declared	13.5 ft · 4.13 m	12.9 ft · 3.94 m	—
Fuel tank declared	—	124.7 qt · 118.0 L	—

Source

Source