Specs of Yamaha R6 and BMW R 18

121 hp, 600 cc, 401 lbs 2003 - 2004

91 hp, 1802 cc, 761 lbs 2021

121 hp, 600 cc, 401 lbs2003 - 2004

91 hp, 1802 cc, 761 lbs2021

Engine	Yamaha R6	BMW R 18
Displacement	600 cc	1802 cc
Max power	121 hp (@13 000 RPM)	91 hp (@4 750 RPM)
Max torque	44 lb ft (@12 000 RPM)	115 lb ft (@3 000 RPM)
Redline	15 500 RPM
Management	Fuel Injection	Fuel Injection
Layout	DOHC Inline-4	DOHC Flat-2
Compression	12.40:1	9.60:1
Oil capacity	3.22 quart
Oil type	10W40, Motul 300V 10W40, Shell Rotella 10W40
Spark plug type	NGK CR9EK, NGK CR10EK
Cooling	Liquid	Air
Valves	16
Bore	65.5 mm	107.1 mm
Stroke	44.5 mm	100.0 mm
Throttle bore	38.0 mm
Weight to power	3.32 lbs/hp	8.36 lbs/hp
Power to weight	753 hp/2500lbs	299 hp/2500lbs
Battery type	12 V 8 Ah, GT9B-4	12V 26Ah

Gearbox	Yamaha R6	BMW R 18
Type	Sequential	Sequential
Clutch	Wet	Dry
Drive	Chain	Shaft
Chain type
Gears count	6	0
Primary ratio	1.955
Final drive	3.0
1. gear	2.846 (68 mph)
2. gear	1.947 (100 mph)
3. gear	1.556 (125 mph)
4. gear	1.333 (146 mph)
5. gear	1.19 (164 mph)
6. gear	1.083 (180 mph)

Chasis	Yamaha R6	BMW R 18
Frame type	Diamond	Double-cradle steel frame
Front susp.	Telescopic fork USD, 4.72 in travel	Telescopic fork, 4.72 in travel
Rear susp.	Swingarm link, spring/gas-oil damper	3.50 in travel

Dimensions	Yamaha R6	BMW R 18
Height	42.91 in	44.29 in
Width	27.17 in	37.99 in
Length	79.72 in	96.06 in
Wheelbase	54.33 in	68.11 in
Ground clearance	5.31 in
Seat height	32.28 in	27.17 in
Wet weight	401 lbs	761 lbs
Max payload weight	425 lbs	474 lbs
Tank capacity	4.5 gallon	4.2 gallon
Rake	24.00 °	32.70 °
Trail	3.39 in	5.91 in

Tires	Yamaha R6	BMW R 18
Front tire	120/60 ZR17 M/C (55W)	120/70 R19
Pressure	36.26 PSI
Rear tire	180/55 ZR17 M/C (73W)	180/65 R16
Pressure	36.26 PSI
Stock tires	Michelin Pilot SPORT N
	Dunlop D208FL

Brakes	Yamaha R6	BMW R 18
Front brakes	Two discs	Two discs
Front caliper	4 pistons	4 pistons
Front brake diameter	298 mm	300 mm
Rear brakes	Disc	Disc
Rear caliper	1 piston	1 piston
Rear brake diameter	220 mm	300 mm
Brake fluid	DOT4

Dimensions	Yamaha R6	BMW R 18
Height	42.91 in	44.29 in
Width	27.17 in	37.99 in
Length	79.72 in	96.06 in
Wheelbase	54.33 in	68.11 in
Ground clearance	5.31 in
Seat height	32.28 in	27.17 in
Wet weight	401 lbs	761 lbs
Max payload weight	425 lbs	474 lbs
Tank capacity	4.5 gallon	4.2 gallon
Rake	24.00 °	32.70 °
Trail	3.39 in	5.91 in

Tires	Yamaha R6	BMW R 18
Front tire	120/60 ZR17 M/C (55W)	120/70 R19
Pressure	36.26 PSI
Rear tire	180/55 ZR17 M/C (73W)	180/65 R16
Pressure	36.26 PSI
Stock tires	Michelin Pilot SPORT N
	Dunlop D208FL

Brakes	Yamaha R6	BMW R 18
Front brakes	Two discs	Two discs
Front caliper	4 pistons	4 pistons
Front brake diameter	298 mm	300 mm
Rear brakes	Disc	Disc
Rear caliper	1 piston	1 piston
Rear brake diameter	220 mm	300 mm
Brake fluid	DOT4