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2004 YZF R1 SPECIFICATION

998cc, liquid-cooled, short-stroke, 20-valve, in-line four-cylinder engine designed to make 180 horsepower power at a stratospheric 12,500 rpm. The shorter cylinder head is re-angled farther forward to 40 degrees, far enough forward to allow the main frame spars to go over the engine instead of around it.

That straighter load path makes the Deltabox frame massively strong, even as it makes the bike narrow to better fit the rider. Together with its light, strong and long Controlled Fill die cast truss swingarm , all that power is deployed to the pavement with the help of a fully adjustable piggyback shock absorber .

Titanium exhaust with Yamaha's lightweight Exhaust Ultimate Powervalve (EXUP) is routed under the seat for greater mass centralization. 56 degrees of cornering clearance is a good thing too.

New, five-spoke wheels at both ends are light to spool up fast. Radial-mount forged calipers and 320mm discs provide outstanding braking performance for bending controllably into tight chicanes at the end of long, sixth-gear straights.

 
Engine
Type 998cc, liquid-cooled, 20-valve, DOHC, in-line four-cylinder
Bore x Stroke 77 x 53.6mm
Compression Ratio 12.4:1
Carburetion Fuel injection, dual-valve throttle bodies with motor-driven secondary valves
Ignition Digital TCI
Transmission 6-speed w/multi-plate clutch
Final Drive #530 O-ring chain
Chassis
Suspension/Front 43mm inverted telescopic fork w/adjustable preload, compression and rebound damping; 4.7" travel
Suspension/Rear Single shock w/piggyback reservoir and adjustable preload, compression and rebound damping; 5.1" travel
Brakes/Front Dual 320mm discs; radial-mount forged 4-piston calipers
Brakes/Rear 220mm disc w/single-piston pin-slide caliper
Tires/Front 120/70-ZR17
Tires/Rear 190-50-ZR17
Dimensions
Length 81.3"
Width 28.3"
Height 43.5"
Seat Height 32.8"
Wheelbase 54.9"
Rake (Caster Angle) 24.0°
Trail 3.8"
Fuel Capacity 4.85 gallons
Dry Weight 379 lbs.
Other
Primary Reduction Ratio 65/43 (1.512)
Secondary Reduction Ratio 45/17 (2.647)
Color Team Yamaha Blue/White; Liquid Silver/Cerulean Silver; Shift Red
Warranty 1 Year (Limited Factory Warranty)
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