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Wednesday, May 14, 2008

YAMAHA R1»Review





The Yamaha YZF-R1 bike, launched in 1998, revolutionized the sportbike landscape by successfully combining the awesome power available previously in the true liter class (1,000cc) with the lightweight and responsiveness that a 600-class chassis affords.

Over the years, despite maintaining its distinctive sharp look, the R1 has undergone technical upgradations to keep pace with the times. The 2006 edition features a short-stroke 998cc DOHC, 20-valve, liquid-cooled inline four-cylinder engine that produces a peak power of 175 bhp.

The dual-valve fuel injection system uses motor-driven secondary throttle valves and 32-bit ECU for responsive, instantaneous power delivery. The refurbished Deltabox V frame, revised forks and a 20mm longer swingarm facilitate superb handling in the R1.

In 2006, to celebrate the 50th anniversary of Yamaha racing in America, Yamaha released a Limited Edition yellow/white/black YZF-R1 in original Yamaha racing colours.

Yamaha YZF-R1 Technical Specifications

Engine
Type 998cc, liquid-cooled, 16-valve, DOHC, inline four-cylinder
Bore x Stroke 77 x 53.6mm
Compression Ratio 12.7:1
Carburetion Fuel Injection with YCC-T and YCC-I
Ignition TCI
Transmission 6-speed w/multi-plate slipper clutch
Final Drive #530 O-ring chain
Chassis
Suspension (Front) 43mm inverted telescopic fork w/adjustable preload, compression damping, rebound damping; 4.7" travel
Suspension (Rear) Single shock w/piggyback reservoir; adjustable for hi-/lo-speed compression damping, rebound damping, spring preload
Brakes (Front) Dual 310mm discs; radial-mount forged 6-piston calipers
Brakes (Rear) 220mm disc w/single-piston caliper
Tires (Front) 120/70-ZR17
Tires (Rear) 190/50-ZR17
Chassis
Length 81.1"
Width 28.3"
Height 43.7"
Seat Height 32.9”
Wheelbase 55.7”
Rake (Caster Angle) 24.0°
Trail 4.0”
Fuel Capacity 4.75 gal.
Dry Weight 381 lbs.

Others

Primary Reduction Ratio 65/43 (1.512)
Secondary Reduction Ratio 45/17 (2.647)
Gear Ratio - 1st Gear 38/15 (2.533)
Gear Ratio - 2nd Gear 33/16 (2.063)
Gear Ratio - 3rd Gear 37/21 (1.762)
Gear Ratio - 4th Gear 35/23 (1.522)
Gear Ratio - 5th Gear 30/22 (1.364)
Gear Ratio - 6th Gear 33/26 (1.269)
Warranty 1 Year (Limited Factory Warranty)



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