Yamaha RD 400 (1977) vs Honda CBR 600RR (2003)

Comparison technical specifications

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Make:	Yamaha	Honda
Model:	RD 400	CBR 600RR
Years:	1977	2003
Engine:	Two stroke, parallel twin cylinder, reed-valve torque induction	Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder.
Capacity:	398 cc / 24.2 cu-in	599 cc / 36.5 cu-in
Bore x Stroke:	64 х 62 mm	67 x 42.5 mm
Cooling System:	Air cooled	Liquid cooled
Compression Ratio:	6.2:1	12.0:1
Lubrication:	Autolube	Wet sump
Induction:	2x 28mm Mikuni carburetors	Dual Stage Fuel Injection (DSFI)
Ignition:	Battery, dual coils, breaker points	Computer-controlled digital transistorized with three-dimensional mapping
Starting:	Kick	Electric
Max Power:	44 hp / 32.3 kW @ 7500 rpm	117 hp / 87.2 kW @ 13000 rpm
Max Torque:	41.1 Nm / 4.2 kgf-m @ 7000 rpm	64 Nm / 6.53 kg-m @ 11000 rpm
Transmission:	6 Speed	6 Speed
Final Drive:	Chain	Chain
Front Suspension:	Telescopic forks	45mm HMAS cartridge fork with spring preload, rebound and compression damping adjustability:
Rear Suspension:	Swing arm, dual shocks	Unit Pro-Link HMAS single shock with spring preload, rebound and compression damping adjustability.
Front Brakes:	Single 267mm disc	2x 310mm discs 4 piston calipers
Rear Brakes:	Single 267mm disc	Single 220mm disc 1 piston caliper
Front Tyre:	3.00S-18	120/70 ZR17
Rear Tyre:	3.50S-18	180/55 ZR17
Dimensions:	Length 1995 mm / 78.5 in Width 760 mm / 3.0 in Height 1060 mm / 41.7 in	Length 2065 mm / 81.2 in Width 685 mm / 26.9 in Height 1135 mm / 44.6 in
Wheelbase:	1320 mm / 51.9 in	1389.3 mm / 54.7 in
Seat Height:	800 mm / 31.4 in	820 mm / 32.3 in
Dry Weight:	165.5 kg / 364.8 lbs	169 kg / 372.5 lbs
Fuel Capacity:	16.5 Litres / 4.3 US gal	18 Liters / 4.7 US gal
Consumption Average:	43 mpg	17.1 km/lit
Top Speed:	172 km/h / 106.8 mph	162.5 mph