6 material differences · fewer than 12

Tractor oneBührer RP-21 Super (A)1969–1975No measured PTO figureTractor twoIMR-RAKOVICA R-76 Standard1979–1989No measured PTO figure

Which should you choose?

Read our verdict on the RP-21 Super (A) and the R-76 Standard → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

6 material differences · 7 fields identical or within 5%, which is not counted as material

Bührer RP-21 Super (A) and IMR-RAKOVICA R-76 Standard, field by field
Field	RP-21 Super (A)	R-76 Standard	Gap
Engine
Engine power, claimed claimed	71 hp	75.0 hp	+5% R-76 Standard
Engine declared	Perkins A 4.248	IMR-PERKINS S-44 A/T	differs
Displacement declared	4.07 L	4.07 L	—
Maximum torque declared	212 lb·ft · 287 N·m	181 lb·ft · 245 N·m	+17% RP-21 Super (A)
Transmission
Top speed declared	15.5 mph · 25 km/h	18.6 mph · 30 km/h	+20% R-76 Standard
Clutch declared	—	Pedal-operated two-stage dry double clutch	—
Hydraulics & hitch
Pump flow declared	5.2 gpm · 19.5 L/min	7.9 gpm · 29.9 L/min	+53% R-76 Standard
Pressure declared	2,845 psi · 196 bar	—	—
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	5,807 lb · 2,634 kg	4,993 lb · 2,265 kg	+16% RP-21 Super (A)
Wheelbase declared	84.5 in · 2,147 mm	83.5 in · 2,120 mm	—
Length declared	132.3 in · 3,360 mm	134.6 in · 3,420 mm	—
Width declared	72.8 in · 1,850 mm	74.8 in · 1,900 mm	—
Height, over the steering wheel declared	67.7 in · 1,720 mm	66.3 in · 1,685 mm	—
Ground clearance declared	16.1 in · 410 mm	17.7 in · 450 mm	+10% R-76 Standard
Turning radius, braked declared	10.6 ft · 3.23 m	11.0 ft · 3.36 m	—
Fuel tank declared	—	63.4 qt · 60.0 L	—

Source

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