Bührer RP-21 Super (A) or Deutz-Fahr D 6907 A ( C )?
Which should you choose?
On performance, no comparable figure differs by more than its threshold: on this data the machines are level.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “the same stated configuration”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | RP-21 Super (A) | D 6907 A ( C ) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 47.2 kW (63.3 hp)Traktorenlexikon, “Bührer RP 21 Super (A)” | 48.0 kW (64.4 hp)Traktorenlexikon, “Deutz-Fahr D 6907” | EvenEven on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the RP-21 Super (A) and the D 6907 A ( C ). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the RP-21 Super (A) and the D 6907 A ( C ). |
| Which pumps more oil for implements? | 19.5 L/min (5.2 gpm)Traktorenlexikon, “Bührer RP 21 Super (A)” | — | No figureNo call on hydraulic flow: no figure on record for the D 6907 A ( C ). |
| Which lifts more on the three-point hitch? | 2,200 kg (4,850 lb)Traktorenlexikon, “Bührer RP 21 Super (A)” | 2,400 kg (5,291 lb)Traktorenlexikon, “Deutz-Fahr D 6907” | EvenEven on three-point lift (both lift at the hitch ends, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which is heavier, for traction? | 2,634 kg (5,807 lb)Traktorenlexikon, “Bührer RP 21 Super (A)” | 2,900 kg (6,393 lb)Traktorenlexikon, “Deutz-Fahr D 6907” | Ahead (a fact, not an advantage)The Deutz-Fahr D 6907 A ( C ) is 10% heavier (266 kg / 586 lb) than the Bührer RP-21 Super (A) (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | — | 4,000 kg (8,818 lb)Traktorenlexikon, “Deutz-Fahr D 6907” | No figureNo call on maximum permissible mass: no figure on record for the RP-21 Super (A). |
| Which has the wider choice of gears? | 15Traktorenlexikon, “Bührer RP 21 Super (A)” | 12Traktorenlexikon, “Deutz-Fahr D 6907” | EvenEven on forward gears (both forward gears, as stated by the source): the difference is under the 25% threshold, too small to call. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the RP-21 Super (A) and the D 6907 A ( C ). |
| Which is faster on the road? | 25 km/h (15.5 mph)Traktorenlexikon, “Bührer RP 21 Super (A)” | 25 km/h (15.5 mph) to 30 km/h (18.6 mph)Traktorenlexikon, “Deutz-Fahr D 6907” | EvenEven on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers more PTO speeds? | 540 rpmTraktorenlexikon, “Bührer RP 21 Super (A)” | — | No figureNo call on PTO speeds: no standard PTO speed stated for the D 6907 A ( C ). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Bührer RP 21 Super (A)” | — | No figureNo call on PTO independence: not stated for the D 6907 A ( C ). |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Bührer RP 21 Super (A)” | 4WDTraktorenlexikon, “Deutz-Fahr D 6907” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1969–1975 | 1983–1984 | Ahead (a fact, not an advantage)The Deutz-Fahr D 6907 A ( C ) is newer: production began 14 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The Deutz-Fahr D 6907 A ( C ) is 10% heavier (266 kg / 586 lb) than the Bührer RP-21 Super (A) (both unladen weight, as stated by the source).
- The Deutz-Fahr D 6907 A ( C ) is newer: production began 14 years later. We hold no parts-availability data, so there is no call on parts.
- Even on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call.
- Even on three-point lift (both lift at the hitch ends, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on forward gears (both forward gears, as stated by the source): the difference is under the 25% threshold, too small to call.
- Even on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on drive: every machine is available with four-wheel drive.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, maximum permissible mass, a creeper range, PTO speeds and PTO independence.
← Every figure for both machines, side by side, with sources