Posts Tagged ‘Aprilia’

The Aprilia Shiver boasts the curious distinction of occupying a niche within a niche. Not only is the $8,999 motorcycle a naked “streetfighter”—a bike type that reverberates more with European buyers than American ones—it’s powered by a 90 degree 750cc L-twin powerplant. Competing directly against the Ducati Monster 796, another trellis-framed “character bike” of Italian origin, the Shiver offers a meaner, angular stance in contrast to the Duc’s more traditional round headlight look.

The Shiver’s 2011 updates include a new fairing and mini windshield, wave brake rotors, and a two-inch narrower saddle for easier reach to the road. The handlebar has been lowered and the pegs moved rearward for a sportier riding posture, and valving specs for the preload and rebound-adjustable rear monoshock have been uprated for a more responsive ride. Finally, the rear wheel has been narrowed to 17 inches x 5.5 inches, wrapped in 180mm thick radial rubber.

Engine:

The Shiver’s liquid-cooled engine produces 95 horsepower at 9,000 rpm and 60 lb-ft of torque at 7,000 rpm, and is mated to a six-speed transmission with a hydraulically actuated clutch. The ride-by-wire engine incorporates three selectable modes: “Sport,” “Touring,” and “Rain.” The inverted 43mm front fork is non-adjustable and wears radially-mounted, four-piston dual 320mm floating discs. Mounted to the aluminum swingarm is a single-piston 240mm disc, and both sets of brakes feature braided metal lines. The instrument’s display modes can be adjusted using a pushbutton on the left switchgear, while engine mode can be set during closed throttle by pushing the starter button on the right handgrip.

The Shiver’s twin-cylinder engine fires up with a pleasing mechanical snarl through its twin underseat stainless steel exhaust, and the clutch releases progressively as it diverts torque to the rear wheel. Engine power distributes evenly through the rev range with a strong charge to redline, though the “Sport” mode’s throttle response might be a bit too abrupt for more sedate riders. But the razor sharp handgrip-to-rev relationship should put a grin on less cautious types. “Touring” mode offers a more manageable dynamic, while “Rain” neuters engine power enough to make it a viable option under wet conditions, or when you simply want to avoid uninvited attention from law enforcement.

Though the 2011 Aprilia Shiver fills an unusual niche for American bike buyers, its spunky engine, improved chassis, and runabout personality lend it qualities that make for a satisfying ride. More premium shocks would likely deliver a more agreeable combination of damping and handling, but as it stands, the bike’s lively acceleration and competent road manners are impressive given its $8,999 price tag. Similarly, brakes are strong, with front binders that react well to lever input and rears that operate nicely, enabling trail braking and additional stopping power when necessary. Initial bite isn’t overwhelmingly powerful (perhaps to keep less experienced riders out of trouble), but there’s plenty of decelerative force that can be summoned if the occasion calls for it.

BEGINNER RIDERS

Though it’s not a literbike and its brakes deliver stopping power with mild initial bite, the 750cc Shiver is nonetheless too powerful to be appropriate for beginner riders.

INTERMEDIATE RIDERS

Newly minted intermediate riders might find the Shiver’s performance a bit too much for their abilities, but those on the more experienced end of the spectrum will find that it delivers enough engine oomph and braking power to keep them on their toes. Don’t get too comfortable aboard the Shiver if you’re somewhere between beginner and advanced status; its L-twin engine produces plenty of power, and quick steering demands a careful touch on twisty roads.

ADVANCED RIDERS

The Aprilia Shiver packs enough performance to keep experienced motorcyclists entertained. Though its engine falls short compared to 1,000cc powerplants, the Shiver’s middleweight mill is mated to a chassis that enables responsive maneuverability and spirited riding. Brakes are powerful enough to encourage high entry speeds into turns, and the bike—especially when ridden in “Sport” mode—feels aggressive and alive, offering enough performance to make more advanced riders feel involved in the experience of piloting the Shiver.

The Aprilia RS 50 is a genuine sports motorcycle, and comes packed with the sort of technology normally found only on a GP racer. Its eye-catching, racing lines and determined, aggressive shape tell you that the Aprilia RS 50 knows no compromises. This 50 cc supersport is made to thrill and has all the performance needed to do so. In terms of style, the RS 50 is clearly and unashamedly inspired by the flagship of the Aprilia family, the RSV 1000 R, the twin that beat Japanese four cylinder racers to win the 2006 Master Bike trophy. This same thirst for victory is found in the RS 50, together with technology developed for the world-beating Aprilia 125 GP. No wonder the RS 50 is the machine that all other 50 cc bikes have to beat.

Technical Info:

Displacement: 49.9cc
Maximum Power: No information
Engine: Liquid cooled, single cylinder two stroke
Ignition: Electronic C.D.I.
Starter: Electric
Transmission: 6-Speed
Frame: Aluminium twin beam frame with extruded profiles and internal reinforcement
Wheelbase: 1310mm
Seat Height: 810mm
Dimensions: L:1965mm x W:720mm x H:1100mm

The specifications for the RS 50 are simply breath-taking.

- Aluminium frame
- Aluminium swingarm
- Lightweight wheels with “Y” spokes
- Radial caliper front brake
- Euro 2, two-stroke engine
- Fairing based on that of the RSV 1000 R
- Analog/digital instruments.