Oct 28, 2008

Yamaha R1 Stills,reviews,specifications.

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The 2008 Yamaha R1 is a sweet, fast, reliable machine. It is very safe in corners, love the torque and accerlation, and really love how smooth this motorcycle feels overall.

Internally, the engine has several high-tech bits. Aluminum pistons are forged for strength, squeezing the intake mixture at a high 12.7:1 ratio. Connecting rods are fracture-split for added durability, while titanium intake valves are light in weight. A coupling-type balancer rotates opposite to the crankshaft to quell vibration. A ramp-type slipper clutch eases high-rpm downshifts.

The R1’s chassis is also slathered with the New Brush. The frame consists of a cast-aluminum forward section mated to Controlled-Fill die-cast outside rails and extruded inside rails. Like the’08 R6, the subframe is made from magnesium for reduced weight from the outer edges of the bike. The aluminum swingarm is also new. Rake, trail and wheelbase are unchanged from 24.0 degrees, 4.0 inches, and 55.7 inches, respectively.



Engine Type 20 valve , DOHC , liquid-cooled
Cylinder arrangement Forward Inclined Parallel 4-cylinder
Displacement 998 cc;
Bore x Stroke 74 x 58 mm;
Compression Ratio 11.8:1;
Maximum power 150 bhp (110.3 kW)@ 10000 rpm;
Maximum Torque 11 kg-m (108.3 Nm) @ 8500 rpm;
Starting System Electric;
Lubrication Wet sump;
Carburation BDSR40;
Primary Reduction Ratio 63/43 (1.465);
Secondary Reduction Ratio 43/16 (2,688);
Clutch type Multiple disc , Wet;
Transmission Type Constant mesh 6-speed;

Overall Length 2035 mm;
Overall Width 695 mm;
Overall Height 1095 mm;
Seat Height 815 mm;
Wheelbase 1395 mm;
Minimum Ground Clearance 140 mm;
Dry Weight 177 kg (390lbs);
Frame Type Deltabox II;
Caster Angle 24°;
Trail 92 mm;
Fuel Tank Capacity 18 L;
Front Wheel 17 x MT3.50, Aluminum;
Front Wheel Travel 135 mm;
Rear Wheel 17 x MT6.00;
Rear Wheel Travel 130 mm;
Front Brake Dual discs, 298 mm diam;
Rear Brake Single disc, 245 mm diam;
Front tire 120/70 ZR17 58W;
Rear tire 190/50 ZR17 73W

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