Ducati 350 F3 Desmo (1986-88) vs Yamaha WR 250F (2020-21) vs Yamaha FJR 1300E / ES (2014) vs Harley-Davidson Harley Davidson FLTC 1340 Tour Glide Classic (1986) vs Yamaha XJ 900S Diversion (1994-95)
Comparison technical specifications
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| Make: | Ducati | Yamaha | Yamaha | Harley-Davidson | Yamaha |
| Model: | 350 F3 Desmo | WR 250F | FJR 1300E / ES | Harley Davidson FLTC 1340 Tour Glide Classic | XJ 900S Diversion |
| Years: | 1986-88 | 2020-21 | 2014 | 1986 | 1994-95 |
| Engine: | Four stroke, 90°“L” twin cylinder, Desmo SOHC, belt driven | Four stroke, single cylinder, DOHC, 4 valve Titanium | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. | Air cooled, four stroke, transverse four cylinder, DOHC, 2 valves per cylinder. |
| Capacity: | 348.9 cc / 21.3 cu in | 249 cc / 15.2 cu-in | 1298 cc / 79.2 cu-in | 1338 cc / 81.6 cu in | 892 cc / 54.4 cu-in |
| Bore x Stroke: | 66 x 51 mm | 77 x 53.6 mm | 79 x 66.2 mm | 88.8 x 108 mm | 68.5 x 60.5 mm |
| Compression Ratio: | 10.3:1 | 13.5:1 | 10.8:1 | 7.4:1 | 10.0:1 |
| Cooling System: | Air cooled | Liquid cooled, | Liquid cooled | Air cooled | Air cooled |
| Induction: | 2 x 30mm Dell'Orto carburetors | 44 mm Keihin throttle body F.I. | Electronic Fuel Injection | One butterfly valve Keihin carburetor | 4x 31mm Mikuni CV |
| Ignition: | Electronic ignition, Bosch BTZ | TCI: Transistor Controlled Ignition | TCI: Transistor Controlled Ignition | Electronic | Digital T.C.I |
| Starting: | Electric | Electric / Kick | Electric | Electric | Electric |
| Transmission: | 5 Speed | 5 Speed Wide ratio | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | #520 Chain | Shaft | Chain | Shaft |
| Front Suspension: | 35 mm Marzocchi fork | 48 mm inverted fork, Adjustable | 48mm upside-down telescopic fork w/adjustable preload, compression and rebound damping; | Gas telescopic forks | 41mm Telescopic forks |
| Rear Suspension: | Cantilever swingarm, Boge single adjustable shock | KYB Fully adjustable single shock | Single shock, link-type, w/adjustable preload and rebound damping; | Dual shocks preload adjustable. | Swingarm Monocross |
| Front Brakes: | 2 x 260 mm Discs | Single 270mm floating wave disc 2 piston caliper | 2x 320mm discs 4 piston calipers | 2x 292mm disc 1 piston caliper | 2x 320mm discs 2 piston calipers |
| Rear Brakes: | Single 260 mm disc | Single 245mm disc 1 piston caliper | Single 283mm disc 2 piston caliper | Single 292mm disc 1 piston caliper. | Single 245mm disc 2 piston caliper |
| Front Tyre: | 100/90-18 | 80/100-21 | 120/70 ZR17 | 140/90-16 | 120/70 -17 |
| Rear Tyre: | 120/80-18 | 100/100-18 | 180/55 ZR17 | 140/90-16 | 150/70 -17 |
| Fuel Capacity: | 18 L / 4.8 US gal / 4.0 Imp gal | 7.5 Liters / 2.0 gal | 25 Liters / 6.6 gal | 20 Litres / 5.3 US gal | 24 Litres / 6.3 US gal |