Triumph TR6R Tiger 650 (1969-70) vs BMW R 18 100th Anniversary (2023)
Comparison technical specifications
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| Make: | Triumph | BMW |
| Model: | TR6R Tiger 650 | R 18 100th Anniversary |
| Years: | 1969-70 | 2023 |
| Engine: | Four stroke, parallel twin cylinder, OHV | Four stroke, two cylinder horizontally opposed Boxer, Pushrod-actuated OHV w/ two camshafts, 4 valves per cylinder |
| Capacity: | 649 cc / 39.6 cu in | 1802 cc / 110 cu-in |
| Bore x Stroke: | 76 x 71.5 mm | 107.1 X 100 mm |
| Compression Ratio: | 9.0:1 | 9.6:1 |
| Induction: | 30 mm Amal concentric carburetor, R930 | Fuel injection, 48 mm Throttle valves |
| Starting: | Kick | Electric, 1.5 kW |
| Max Power: | 31.3 kW / 42 hp @ 6500 rpm | 67 kW / 91 hp @ 4750 rpm |
| Max Torque: | 50.1 Nm / 5.1 kgf-m / 37 ft-lb @ 5500 rpm | 158 Nm / 116 lb-ft @ 3000 rpm |
| Clutch: | Wet, multiplate | Hydraulically activated single-disc dry clutch |
| Transmission: | 4-Speed | Constant-mesh 6-speed |
| Final Drive: | Chain | Shaft, Final Drive 3.091 |
| Gear Ratios: | 1st 12.08 / 2nd 8.36 / 3rd 6.15 / 4th 4.66:1 | 1st 2,438 / 2nd 1,696 / 3rd 1,296 / 4th 1,065 / 5th 0,903 / 6th 0,784 |
| Frame: | Welded frame with large diameter oil-containing main tube | Construction type Double-loop steel tube frame |
| Front Suspension: | Telescopic fork, 2-way hydraulic damping | 49 mm Telescopic fork, Non-adjustable |
| Rear Suspension: | Swingarm, dual shocks, hydraulically damped, adjustable preload | Cantilevered spring-preload adjustable shock |
| Front Brakes: | Drum, 2LS, 200 mm / 8" | 2X 300mm discs |
| Rear Brakes: | Drum, 1LS, 180 mm / 7" | Single 300mm disc |
| Front Tyre: | 3.25 x 19 K70 | 120/70 R 19 or B 19 (manufacturer-dependent) |
| Rear Tyre: | 4.00 x 18 K70 | 180/65 B 16 |
| Dimensions: | Length: 2220 mm / 87.5 in Width: 736 mm / 29.0 in | Length: 2440 mm / 36 in Width: 964 mm / 37.9 in with mirrors |
| Wheelbase: | 1420 mm / 56 in | 1731 mm / 68.1 in |
| Seat Height: | 790 mm / 31 in | 690 mm / 27.2 in |
| Fuel Capacity: | 18.2 L / 4.8 US gal / 4.0 Imp gal | 16 Litres / 4.2 US gal |