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| Bore x Stroke | 95.0 x 63.4mm | 102.0mm x 84.0mm |
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| Carburetion | Keihin 39mm FCR w/throttle position sensor | Yamaha Fuel Injection (YFI), 44mm |
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| Compression Ratio | 11.4:1 | 9.2:1 |
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| Drive Train | 2WD; sealed O-ring chain, eccentric adjustment | 2WD; sealed O-ring chain, eccentric adjustment |
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| Ignition | DC-CDI | 16-Bit ECU |
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| Starting System | Electric | Electric |
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| Transmission | 5-speed; wet multiplate clutch | 5-speed w/reverse; wet multiplate clutch |
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| Type | 449cc liquid-cooled w/fan, 4-stroke; DOHC, 5 titanium valves | 686cc liquid-cooled w/fan, 4-stroke; SOHC, 4 valves |
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| Brakes/Front | Dual ventilated hydraulic disc, twin piston | Dual ventilated hydraulic disc, twin piston |
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| Brakes/Rear | Ventilated hydraulic disc, twin piston | Ventilated hydraulic disc, self adjusting park brake function |
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| Suspension/Front | Independent double wishbone, w/piggy back High-/Lo-speed compression, rebound and threaded preload adjustment, 9.1-in travel | Independent double wishbone w/piggy back High-/Lo-speed compression, rebound and threaded preload adjustment, 9.1-in travel |
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| Suspension/Rear | Cast aluminum swing arm w/rebound,High-/Lo-speed compression and threaded preload, 10.6-in travel | Cast aluminum swing arm w/rebound, High-/Lo-speed compression and threaded preload adjustment, 10.1-in travel |
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| Tires/Front | AT21x7-10 radial | AT21x7-10 radial |
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| Tires/Rear | AT20x10-9 radial | AT20x10-9 radial |
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| Dry Weight | 350 lb | 396 lb |
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| Fuel Capacity | 2.6 gal | 2.9 gal |
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| Ground Clearance | 4.5 in | 4.4 in |
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| L x W x H | 72.4 x 46.1 x 42.9 in | 72.6 x 46.1 x 44.5 in |
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| Seat Height | 31.9 in | 32.0 in |
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| Wheelbase | 50.4 in | 50.4 in |
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| Lighting | Dual 30W Krypton multi-reflector headlights & 3.9/0.5W LED brakelight | Dual 30W Krypton multi-reflector headlights & 3.9/0.5W LED brakelight |
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| Warranty | 6 Month (Limited Factory Warranty) | 6 Month (Limited Factory Warranty) |
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| MSRP* | $7,649 (Midnight Blue/White) Available from January 2008
$7,649 (Black/Orange) Available from July 2007
| $7,999 (Black Metallic with Flames) Available from January 2008
$7,999 (Special Edition Red/White) Available from June 2007
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