BMW R 25 (1950-51) vs KTM 1090 Adventure R (2017)
Comparison technical specifications
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| Make: | BMW | KTM |
| Model: | R 25 | 1090 Adventure R |
| Years: | 1950-51 | 2017 |
| Engine: | Four stroke, single cylinder, pushrod operated, OHV, 2 valves per cylinder. | Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 247 cc / 15.1 cu in. | 1050 cc / 64.0 cu-in |
| Bore x Stroke: | 68 x 68 mm | 103 x 63 mm |
| Compression Ratio: | 6.5:1 | - |
| Cooling System: | Air cooled | Liquid cooling system, continuous circulation of cooling liquid with water pump |
| Induction: | 1x Bing type 1/22/28 | EFI, ride by wire |
| Ignition: | Battery ignition | Keihin EMS with RBW, twin ignition |
| Starting: | Kick | Electric |
| Clutch: | Single plate, dry | PASC (TM) slipper clutch, hydraulically actuated |
| Max Power: | 8.9 kW / 12 hp @ 5600 rpm | 125 hp / 91.2 kW @ 8500 rpm |
| Transmission: | 4 Speed | 6 Speed |
| Final Drive: | Shaft | Chain X-Ring 5/8 x 5/16″ |
| Frame: | Closed steel twin loop frame, welded | Chromium-Molybdenum steel trellis frame, powder coated |
| Front Suspension: | Telescopic fork | 48mm WP Suspension Up Side Down |
| Rear Suspension: | Pushrod suspension, spring loaded saddle | WP-PDS Monoshock |
| Rear Brakes: | ∅160mm Drum | Single 267mm disc 2 piston caliper |
| Front Tyre: | 3.25 x 19" | 90/90 R21 Continental TKC 80 Twinduro |
| Rear Tyre: | 3.25 x 19" | 150/70 R18 Continental TKC 80 Twinduro |
| Fuel Capacity: | 12 L / 3.1 US gal | 23 Litres / 6.08 gal |