.

Honda VTR 1000 RC51 SP2

.  

Make Model

Honda VTR 1000 RC51 SP2

Year

2004

Engine

Four stroke, 90°V-twin cylinder, DOHC, 4 valves per cylinder

Capacity

996 cc / 60.8 cu-in

Bore x Stroke 100 x 63.6 mm
Compression Ratio 10.8:1
Cooling System Liquid cooled
Lubrication Wet sump

Induction

Electronic fuel injection PGM-FI with two injectors per cylinder

Ignition 

Computer-controlled digital transistorized 

Starting Electric

Max Power

136 hp / 100 kW @ 9500 rpm 

Max Torque

10.7 kgf-m / 105 Nm @ 8000 rpm

Clutch Hydraulic clutch

Transmission 

6 Speed 

Final Drive Chain
Frame Aluminium, twin spar

Front Suspension

43mm inverted cartridge-type fork with adjustable spring preload, and compression and rebound damping,

Front Wheel Travel 130 mm / 5.1 in

Rear Suspension

Pro-Link with gas-charged integrated remote reservoir damper offering adjustable preload, and compression and rebound damping,

Rear Wheel Travel 120 mm / 4.7 in

Front Brakes

2x 320mm discs 4 piston calipers

Rear Brakes

Single 220mm disc 1 piston caliper

Front Tyre

120/70 ZR17

Rear Tyre

190/50 ZR17

Dimensions Length 2040 mm / 80.3 in
Width  725 mm / 28.5 in
Height 1145 mm / 45.0 in
Wheelbase 1420 mm / 55.9 in
Seat Height 813 mm / 32.0 in
Ground Clearance 130 mm / 5.1 in

Dry Weight

194 kg / 430 lbs

Fuel Capacity

18 Liters / 3.8 US gal

Consumption Average

19.5 km/lit

Standing ¼ Mile  

10.9 sec / 209 mph

Top Speed

271.3 km/h

 

 

Race-shop revisions make the RC51 a much-improved streetbike for 2002
From the February, 2009 issue of Motorcyclist
Whatever the multimillion-dollar factory riders want, it seems they get. And if any of those changes happen to benefit street riders, well fine--but it's almost an accident. So it is for 2002: A multitude of tweaks have arrived to make the '02 RC51 more competitive on the track, but the trickle-down effect is that the bike is now much improved for puck-wearing plebes.

 

For '02, Honda chose to tweak the engine a bit, put the entire bike on a part-by-part diet and significantly revise the suspension, chassis and swingarm. Down in the engine room, the throttle bodies have been supersized from 54mm to 62mm, and the two injectors feeding each combustion chamber now sport 12 laser-drilled jets, rather than the four little garden hoses of the previous bike, for a finer spray. The injection and ignition mapping were tweaked, also, resulting in throttle response that's as smooth and creamy as a nougat filling. (Don't tell Nicky; he's got a sweet tooth.) The new motor feels same-same in terms of power output; Honda claims a two-horsepower increase for 128 hp at the crank--but the low-rev snatchiness is nowhere to be found.

The engine is warmed over, but as Honda's Doug Toland said at the intro, "All of the 'magic' of this bike is in the chassis." The new Pro Frame looks similar to last year's and has the same amount of rigidity, but weighs 260 grams less and is more linear in its absorption of stress thanks in part to the new stamped engine hangers (previous units were cast). Also new is a steering-damper boss up by the steering head, but on the stock geometry you'd be hard pressed to make this bike shake its head on the street or track.

 

Even though the steering-head angle has been reduced one degree to 23.5 degrees--the steepest of any Honda--the RC51 feels planted at all speeds, even at 130 mph through Willow Springs' infamous Turn Eight. There you sit, tucked behind the splendid new windscreen that's 1.2 inches taller than last year's, sensing no instability from either end of the bike. Of course, the new swingarm (890 grams lighter) is 16mm longer and aids the stabilization effort.

Right above that sexy new swingarm is a revised shock (115 grams lighter). It's been repositioned to allow room for aftermarket exhaust systems, but also had its linkage ratio tweaked (4 percent softer on the bottom, 5 percent softer on top), even though spring rates are the same. Nine percent more compression damping has been added along with 11 percent more rebound. Up front similar tweaks have been applied. The fork (145 grams lighter) is now 9 percent softer on compression, up 16 percent on rebound, with the same spring rate. Fork travel has also been increased from 4.7 to 5.1 inches. These changes make the bike feel plush and controllable--a far cry from the wooden feel of the previous bike. The suspension is simply awesome now, soaking up midcorner ripples yet never getting out of line or doing anything untoward.

 

Steering effort is drastically reduced on the new bike. The RC51 is no 954 in terms of flickability, but the new bike turns in with an ease and precision that's head and shoulders above the old bike. Pick your line, shove the bar and you're there. The previous unit's brakes were fine, but the new four-piston jobbies are even better. The old brakes were extremely progressive--once activated you only had to move your finger a smidge to stop the bike. The new brakes are totally linear and require more lever travel, providing better feel, easier modulation and more feedback.

Speaking of feedback, the RC51 comes wrapped in a new flavor of Dunlop rubber named D208. The 208s are quite soft for a street tire, which allows them to heat up quickly and throw down GP-like grip. Feedback from both the front and rear was excellent, with excellent straight-line stability and precise steering at high and low speeds.

Our only complaint (and we think some folks at American Honda's marketing department will back us up on this) is that the bike looks exactly the same as last year's. Europe gets a bitchin' white/grey, but we get the same paint job as before. If you go out and buy the "new" model with all the killer updates, you want people to know, but it's literally impossible to tell the two bikes apart from a distance.

Source Motorcyclist