Slipstream


 * The best street bike you can get, this thing eats asphalt and shits out victory
 * For starters if the top speed isn't enough, the fluid handling / cornering blows through minor twisties like they were nothing, and a quick tap of the handbrake lets you cut 90-degree & hair-pins accurately. While you might lose some speed on tight corners, the insane, on-road grip & acceleration will have you blowing past 100mph again before blinking an eye.
 * While it's obviously the best street bike, the Slipstream also gives the Valkyrie a run for its money on wide dirt-roads. Its drifting is easily controlled, and its grip/accleration lets you easily recover from minor mistakes. While it theoretically has a higher top-speed than the Valkyrie on dirt-roads, the bike bounces so much while dirt-roading that you'll find your top speed constantly bouncing up and down as well (where-as the Valkyrie hugs the dirt road more, staying in contact with it, letting it top it's 100mph more regularly). If it came down to a dirt-road race between a Valkyrie and a Slipstream, it would really just be driver skill that determined the winner, because both are equally well-equipped for it (and fun to ride on it!).
 * Narrow dirt paths (especially ones that corner tightly) and off-roading are moderate (but not as good as the Easyrider). But, if you come to a stop off-road, trying to get going again will feel like your tires are made of butter. So, off-road recovery can be hit or miss. If you go desperately flying off the track (especially if you'd have to climb an off-road hill to get back on it) it would be faster to just hit the "recovery" key.
 * Modeled off of liter racing bikes (1000cc+), but for some reason has off-road tires on it. (Except for the headlights, looks a lot like this off-road-modded Ducati, although that Ducati was done several years after FUEL was created)