BMW K1 (1991-92) vs Aprilia SL 750 Shiver (2009) vs BMS Choppers Blue Crush Warrior (Yamaha Road Star Warrior) (2004) vs MV Agusta Brutale 800 RC (2019)
Comparison technical specifications
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| Make: | BMW | Aprilia | BMS Choppers | MV Agusta |
| Model: | K1 | SL 750 Shiver | Blue Crush Warrior (Yamaha Road Star Warrior) | Brutale 800 RC |
| Years: | 1991-92 | 2009 | 2004 | 2019 |
| Engine: | Four-stroke, horizontal in line four cylinder, DOHC, 4 valves per cylinder | Four stroke, longitudinal 90°V twin, DOHC, 4 valves per cylinder | Four stroke, 48° V-twin | Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder with counter-rotating crankshaft |
| Capacity: | 987 cc / 60.2 cu in | 749 cc / 45.7 cu-in | 1671 cc / 102 cu in | 798 cc / 48.68 cu. in |
| Bore x Stroke: | 67 x 70 mm | 92 x 56.4 mm | 97 x 113 mm | 79 x 54.3 mm |
| Compression Ratio: | 11.0:1 | 11.0:1 | 8.3:1 | 12.3:1 |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled | Cooling with separated liquid and oil radiators |
| Starting: | Electric | Electric | Electric | Electric |
| Transmission: | 5 Speed | 6 Speed | 5-Speed, close ratio | Cassette style 6 speed constant mesh |
| Final Drive: | Shaft | Chain Transmission ratio: 16/44 | Belt | Chain |
| Front Suspension: | Telescopic fork with hydraulic shock absorber | Ø43 mm upside-down fork. | Ø41 mm Kayaba inverted telescopic fork with adjustable preload | 43 mm Marzocchi “UPSIDE DOWN” telescopic hydraulic fork in DLC treated aluminium, with gold colour anodized fork legs and having rebound-compression damping and spring preload external and separate adjustment |
| Rear Suspension: | Monolayer swinging arm | Aluminium alloy swingarm with reinforcement truss. Hydraulic shock absorber adjustable in spring preload and rebound damping. | Single shock, link-type with adjustable preload and rebound damping | Progressive Sachs, single shock absorber with rebound and compression damping and spring preload adjustment Single sided swing arm material Aluminium alloy |
| Front Brakes: | 2 x 305mm discs, 4 piston calipers | 2 x Ø320 mm discs, 4 piston caliper | Dual Ø298 mm discs, 4 piston calipers | 2x 320mm floating discs Brembo 4 piston calipers |
| Rear Brakes: | Single 285mm disc, 1 piston caliper | Single Ø245 mm disc, 2 piston caliper | Single Ø282 mm disc, 2 piston caliper | Single 220mm disc Brembo 2 piston caliper |
| Front Tyre: | 120/70 ZR17 | 120/70 ZR17 | 130/90-16120/70-ZR18 Radial | 120/70 - ZR 17 M/C (58 W) |
| Rear Tyre: | 160/60 ZR18 | 180/55 ZR17 | 200/50-ZR17 Radial | 180/55 - ZR 17 M/C (73 W) |
| Fuel Capacity: | 22 L / 5.8 US gal | 15 Litres / 3.9 US gal | 15.1 L / 4.0 US gal | 16.5 Litres / 4.36 US gal |