Ariel Leader 4 Prototype (1962) vs BMS Choppers Road Star (2004) vs BMS Choppers Roadliner S (2013) vs BMS Choppers Blue Crush Warrior (Yamaha Road Star Warrior) (2004)

Comparison technical specifications

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Make:	Ariel	BMS Choppers	BMS Choppers	BMS Choppers
Model:	Leader 4 Prototype	Road Star	Roadliner S	Blue Crush Warrior (Yamaha Road Star Warrior)
Years:	1962	2004	2013	2004
Engine:	Four stroke, four horisontal cylinders on the left with in-line crankshaft, OHV	Four stroke, 48° V-twin	Four-stroke, pushrod OHV, air-cooled, 48° V-twin, 4 valves per cylinder	Four stroke, 48° V-twin
Capacity:	696 cc / 42.5 cu in	1671 cc / 102 cu in	1852 cc / 113 cu in	1671 cc / 102 cu in
Cooling System:	Air cooled	Air cooled	Air cooled	Air cooled
Lubrication:	Wet sump	Dry sump	Dry sump	Dry sump
Exhaust:	4-into-1	Two-into-two, chrome	2-into-2, stainless steel	Two-into-one, chrome
Induction:	Single Zenith carburetor	Ø40 mm Mikuni CV carburetor with throttle position sensor	Twin-bore electronic fuel injection, with throttle position sensor	Twin-bore Electronic Fuel Injection, with throttle position sensor
Ignition:	Coil	Digital TCI	TCI	Digital TCI
Starting:	Electric	Electric	Electric	Electric
Transmission:	4-Speed	5-Speed, wide ratio	5-Speed	5-Speed, close ratio
Final Drive:	Shaft	Belt	Belt	Belt
Frame:	Pressed steel frame with leg shields	Double tube cradle, single sided swingarm	Lightweight aluminium	Double tube cradle, twin sided swingarm, aluminium frame
Wheels:	Steel, laced wire spokes	3-Spoke, aluminium, chrome	3-Spoke, cast aluminium	10-Spoke, aluminium, chrome
Front Brakes:	Drum	Dual Ø298 mm discs, 4 piston calipers	Dual Ø298 mm discs, 4-piston caliper	Dual Ø298 mm discs, 4 piston calipers
Rear Brakes:	Drum	Single Ø320 mm disc, 2 piston caliper	Single Ø320 mm disc, single piston caliper	Single Ø282 mm disc, 2 piston caliper
Wheelbase:	1448 mm / 57 in	1689 mm / 66.5 in	1715 mm / 67.5 in	1699 mm / 65.7 in