From motorcycle.com
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| Specs | BMW G310R | Husqvarna Svartpilen 401 | Kawasaki Z400 | KTM 390 Duke | Yamaha MT-03 |
|---|---|---|---|---|---|
| MSRP | $5045 (base) | $5299 | $4999 | $5699 | $4599 |
| Engine Type | Water-cooled, single-cylinder 4-stroke engine, four valves, two overhead camshafts and wet sump lubrication | Liquid-cooled, four-valve, DOHC, Single cylinder | 4-stroke, 2-cylinder, DOHC, liquid-cooled | Liquid-cooled, four-valve, DOHC Single cylinder, 4-stroke | liquid-cooled DOHC 4-stroke; 4 valves |
| Displacement | 313cc | 373cc | 399cc | 373cc | 321cc |
| Bore and Stroke | 76.2 mm x 60.96 mm | 89.0 mm x 60.0 mm | 70.0 mm x 51.8 mm | 89.0 mm x 60.0 mm | 68.0 mm x 44.1 mm |
| Compression Ratio | 10.9:1 | 12.6:1 | 11.5:1 | 12.6:1 | 11.2:1 |
| Horsepower (measured) | 31.8 hp at 9500 rpm | 37.9 hp at 9200 rpm | 43.2 hp at 10,200 rpm | 39.8 hp at 8800 rpm | 36.4 hp at 10,800 rpm |
| Torque (measured) | 19.7 lb-ft. at 7500 rpm | 22.1 lb-ft. at 7000 rpm | 24.5 lb-ft. at 8200 rpm | 25.8 lb-ft. at 7000 rpm | 20.1 lb-ft. at 9100 rpm |
| Fueling | Electronic fuel injection | Electronic fuel injection system, 46 mm throttle bodies with Ride-by-Wire system | DFI with 32mm throttle bodies | Electronic fuel injection system, 46 mm throttle bodies with Ride-by-Wire system | Fuel injection |
| Transmission | Constant mesh 6-speed gearbox integrated in crankcase | 6 speed w/autoblipper | 6-speed | 6 gears | 6-speed |
| Clutch | Multi-disc oil bath (anti-hopping) with self-reinforcement | multi-disc slipper clutch, mechanically operated | multi-plate wet clutch | multi-disc slipper clutch, mechanically operated | Constant mesh; wet multiplate clutch |
| Final Drive | Chain | Chain | Chain | Chain | X-ring chain |
| Frame | Tubular steel frame in grid structure with bolt-on rear frame | Steel trellis frame, powder coated | Trellis, high tensile steel | Steel trellis frame, powder coated | Tubular steel |
| Front Suspension | 41mm inverted fork, non-adjustable; 5.5 in. travel | WP 43 mm usd fork, compression, rebound adjustable, 5.6 inches of travel | Telescopic fork/4.7 in travel | 43mm WP inverted fork, non-adjustable; 5.6 inches travel | 37mm KYB inverted fork; 5.1-in travel |
| Rear Suspension | Single shock, preload-adjustable; 5.2 in travel | WP-USD Ø 43 mm, 5.6 inches travel | Uni-Trak swingarm/5.1 in travel | WP shock absorber, 5.9 inches travel | Single shock; 7-step preload adjustable, 4.9-in travel |
| Front Brake | Single disc, diameter 300mm, 4-piston fixed caliper, radially bolted | ByBre four piston, radially mounted caliper, brake disc Ø 320 mm | Single 310mm disc, twin-piston caliper, ABS | 320mm single disc, radial-mount 4-piston caliper, ABS w/Supermoto mode | Hydraulic single disc brake, 298mm; ABS |
| Rear Brake | Single disc, diameter 241mm, single-piston floating caliper | ByBre single piston, floating caliper, brake disc Ø 230 mm | Single 220mm disc, single-piston caliper, ABS | 230mm single disc, single piston, floating caliper, ABS w/Supermoto mode | Hydraulic single disc brake, 220mm; ABS |
| Front Tire | 110/70 R 17 | Pirelli Scorpion Rally STR 110/70 R 17 | 110/70 R 17 | 110/70 x 17 | 110/70 R17 |
| Rear Tire | 150/60 R 17 | Pirelli Scorpion Rally STR 150/60 R 17 | 150/60 R 17 | 150/60 x 17 | 140/70 R17 |
| Rake | 25.1° | 25.0° | 24.5° | 25.0° | 25.0° |
| Trail | 4.5 inches | 3.7 inches | 3.6 inches | 3.7 inches | 3.7 inches |
| Wheelbase | 54.3 inches | 53.4 ± 0.6 inches | 53.9 inches | 53.4 ± 0.6 inches | 54.3 inches |
| Seat Height | 30.9 inches (Standard Seat), 30.3 inches (low), 31.5 (high) | 32.9 inches | 30.9 inches | 32.7 inches | 30.7 inches |
| Curb Weight (measured on MO scales) | 363 pounds | 359 pounds | 360 pounds | 363 pounds | 371 pounds |
| Fuel Capacity | 2.9 gallons (Approx. 0.25 gal reserve) | 2.5 gallons | 3.7 gallons | 3.5 gallons | 3.5 gallons |
2021 Lightweight Nakedbike Spec Sheet Shootout
Motorcycle.com's Naked Summer continues with this crop of lightweight naked bikes. Here, we look at the specs for all the contenders.
