Ducati Formula 73 (2026) vs SYM Jet4 50 (2014) vs Kawasaki GPz 1000RX (1988) vs Husqvarna SMR 125 (2012) vs Beta RE 125 AT (2008)
Comparison technical specifications
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| Make: | Ducati | SYM | Kawasaki | Husqvarna | Beta |
| Model: | Formula 73 | Jet4 50 | GPz 1000RX | SMR 125 | RE 125 AT |
| Years: | 2026 | 2014 | 1988 | 2012 | 2008 |
| Engine: | Four stroke, 90? ?L? twin cylinder, SOHC, desmodromic 2 valves per cylinder | Single cylinder, 4-stroke, SOHC | Four stroke, transverse four cylinders, 4 valve per cylinder | Four stroke, single cylinder, SOHC, 4 valve | Air cooled, four stroke, single cylinder, |
| Capacity: | 803 cc / 49.0 cub in | 49.5 cc / 3.0 cub in. | 997 cc / 60.8 cu-in | 124.4 cc / 7.6 cu-in | 123 cc / 7.5 cu in |
| Cooling System: | Air cooled | Air cooled | Liquid cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 11.0:1 | 12.2:1 | 10.2:1 | 11.2:1 | 10.0:1 |
| Induction: | Electronic fuel injection, 50 mm throttle body, Ride by Wire system | Electronic | 4x Keihin CVK 36 carburetors | Carburettor KEIHIN 29 | Mikuni 5NH1 carburetor |
| Ignition: | Marelli electronic | CDI | TCI (Transistor Controlled Ignition) | CDI | Moryama 5HH |
| Starting: | Electric | Electric & kick | Electric | Electric | Electric & kick |
| Clutch: | Hydraulically controlled slipper and self-servo wet multiplate clutch | Centrifugal | Wet, multiple discs, cable operated | Wet,multiplate type; hydraulic control | Wet, multiplate |
| Transmission: | 6 speed with Ducati Quick Shift up/down | CVT | 6 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain, front spocket 15, rear sprocket 46 | Belt | Chain | Chain | Chain |
| Frame: | Tubular steel trellis frame | Pipe under bone, steel | Steel, twin spar | TypeDouble tube cradle with high resistance steel round tubes; rear frame with steel square tubes | Steel, double cradle |
| Front Suspension: | 41mm Kayaba USD forks | Telescopic fork | 40mm Telescopic forks, air assistance and AVDS | Marzocchi Upside-Down telescopic hydraulic fork with advanced axle | Hydraulic forks, 41mm Ø |
| Rear Suspension: | Kayaba rear shock, pre-load adjustable | Twin sided swing arm | Uni-Trak rising-rate with adjustable rebound damping. | Progressive "Soft Damp" type with single hydraulic shock absorber; spring preload adjustment 290 mm wheel travel | Single shock adjustable spring preload |
| Front Brakes: | Single 330 mm disc, 4-piston caliper | Hydraulic disc, 226 mm | 2x 280mm discs 1 piston calipers | Single 260mm disc 4 piston caliper | Single 260 mm Ø disc |
| Rear Brakes: | Single 245 mm disc, 1-piston floating caliper | Drum, 110 mm | Single 260mm disc 1 piston caliper | Single 220mm disc 2 piston caliper | Single 220 mm Ø disc |
| Front Tyre: | 120/70 R17 Pirelli Diablo Rosso IV | 120/60-13 tubeless | 120/80-16 | 110/70 -17 | 90/90-21 |
| Rear Tyre: | 180/55 R17 Pirelli Diablo Rosso IV | 130/70-12 tubeless | 150/80-16 | 150/60 -17 | 120/80-18 |
| Seat Height: | 808 mm / 31.8 inches | 775 mm / 30.5 in. | 790 mm / 31.1 in | 900 mm / 35.4 in | 890 mm / 35.0 in |
| Fuel Capacity: | 14.4 Litres / 3.8 US gal | 5.2 L / 1.4 US gal | 21 Litres / 5.5 US gal | 9.5 Litres / 2.5 US gal | 6.7 L / 1.8 US gal |