Suzuki GSX-R 750 Yoshimura Limited Edition (2013) vs Harley-Davidson Harley Davidson FLHTK Electra Glide Ultra Limited (2017-18) vs Aprilia RS 125 R Max Biaggi Black (2009) vs Aprilia Tuono 1100 Factory. (2015-16)
Comparison technical specifications
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| Make: | Suzuki | Harley-Davidson | Aprilia | Aprilia |
| Model: | GSX-R 750 Yoshimura Limited Edition | Harley Davidson FLHTK Electra Glide Ultra Limited | RS 125 R Max Biaggi Black | Tuono 1100 Factory. |
| Years: | 2013 | 2017-18 | 2009 | 2015-16 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder | Single cylinder, two stroke, reed valves induction, aluminium cylinder with Nikasil coated liner | Longitudinal 65? V4 cylinder, 4-stroke, DOHC, four valves per cylinder |
| Capacity: | 749 c / 45.7 cub. in. | 1746 cc / 107 cub in | 124.8 cc / 7.5 cu in | 1077 cc / 65.7 cu in |
| Bore x Stroke: | 70 x 48.7 mm | 100 x 111 mm | 54 x 54.5mm | 81 x 52.3 mm |
| Cooling System: | Liquid. High capacity large trapezoidal-shaped radiator which includes compact cooling fan assembly designed for improved air flow. | Air cooled | Liquid cooled | Liquid cooled |
| Lubrication: | Wet sump | Pressurized, dry-sump with oil cooler | Separate mixing, volumetric pump | Wet sump lubrication system with oil radiator and two oil pumps (lubrication and cooling) |
| Induction: | New 32 bit ECM features 1024 kilobytes of ROM for maximum engine performance working in conjunction with the new S-DMS engine management system | Electronic Sequential Port Fuel Injection (ESPFI) | Dell'Orto PHBH 28 carburetor | 4 Weber-Marelli 48-mm throttle bodies with 4 injectors and latest generation Ride-by-Wire engine management. Choice of three different engine maps selectable by the rider with bike in motion: T (Track), S (Sport), R (Road) |
| Ignition: | Digital DC-CDI | Single-fire, non-wasted, map-controlled spark ignition | CDI electronic ignition | Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and "stick-coil"-type coils |
| Starting: | Electric | Electric | Electric | Electric |
| Max Torque: | 86.3 Nm / 8.8 kgf-m / 64 ft-lb @ 11200 rpm | 154 Nm / 113.6 lb-ft @ 3250 rpm | 19 Nm / 1.9 kgf-m / 14.1 lb-ft @ 9000 rpm | 120 Nm / 12.2 kgf-m / 88.5 lb-ft @ 9000 rpm |
| Transmission: | 6 Speed, constant mesh | 6 Speed | 6 Speed | 6 Speed, gear lever with Aprilia Quick Shift electronic system (aQS) |
| Final Drive: | Chain, RK525ROZ5Y, 116 links | Belt | 17:40 | Chain, |
| Frame: | Ultra-lightweight frame built entirely of aluminum alloy castings. | Mild steel; tubular frame; two-piece stamped and welded backbone; cast and forged junctions; twin downtubes; bolt-on rear frame with forged fender supports; MIG welded | Cast aluminium, reinforced box section, sloping twin-spar frame | Aluminium dual beam chassis with pressed and cast sheet elements. Sachs steering damper |
| Front Suspension: | Showa inverted 41 mm cartridge front forks fully adjustable for high and low speed compression, spring preload, and rebound damping | 41.3 mm telescopic, cartridge-style damping | Upside-down forks, Ø 40mm | Upside-down "one by one" ?hlins fork with TIN surface treatment fork, ? 43 mm stanchions. Forged aluminium radial calliper mounting bracket. Completely adjustable spring preload and hydraulic compression and rebound damping. |
| Rear Suspension: | Showa 41mm aluminum alloy rear shock with a 16mm rod diameter are fully adjustable for high and low speed compression, spring preload and rebound damping | Swingarm Mild steel, two-piece drawn and welded section, forged junctions, MIG welded, Rear Shocks Air-adjustable | Monoshock, cast aluminium box section swingarm with asymmetric members | Double braced aluminium swingarm; mixed low thickness and sheet casting technology. ?hlins Racing monoshock with piggy-back, fully adjustable in: spring preload, wheelbase length, hydraulics in compression and rebound. APS progressive linkages |
| Front Brakes: | 2 x 310 mm Discs, radial-mount opposed-four-piston Brembo 4 piston monoblock calipers | 2 x 300mm discs, 4 piston caliper ABS | Single 320 mm floating discs, 4 piston radial caliper | Dual 320 mm floating stainless steel discs with lightweight stainless steel rotor with 6 studs [aluminium flange] Brembo M432 monobloc radial callipers with 4 x ?32 mm opposing pistons. Sintered pads. Axial pump master cylinder and metal braided brake hoses. |
| Rear Brakes: | Single 220 mm disc, Nissin single piston caliper | Single 300 mm disc, 4 piston caliper ABS | Single 220 mm disc, 2 piston caliper | ?220 mm diameter disc; Brembo floating calliper with two ?32 mm separate pistons. Sintered pads. Master cylinder with built in reservoir and metal braided hose. |
| Front Tyre: | 120/70 ZR17 | 130/80B17 65H | 110/70-17 | 120/70 ZR 17 |
| Rear Tyre: | 180/55 ZR17 | 180/65B16 81H | 150/60-17 | 190/55 ZR 17 (alternative: 190/50 ZR 17; 200/55 ZR 17) |
| Seat Height: | 810 mm / 31.8 in. | Unladen 740 mm / 29.1 in Laden 698 mm / 27.5 in | 805 mm / 31.7 in | 825 mm / 32.5in |
| Dry Weight: | 156 kg / 344 lbs | 398 kg / 877 lbs | 127 kg / 280 lbs | 184kg / 405 lbs |
| Fuel Capacity: | 17 Litres / 4.5 US gal / 3.7 Imp gal | 22.7 Litres / 6 US gal | 14 Litres / 3.7 US gal | 18.5 Litres /4.9 US gal |