2004 Buell XB12R Firebolt — Motorcycle USA

7 Июн 2015 | Author: | Комментарии к записи 2004 Buell XB12R Firebolt — Motorcycle USA отключены
Buell Firebolt XB12R

2004 Buell XB12R

The new 1200cc XB12R is Buell’s bike yet, offering big trick components and the exclusivity of a

The XB Series Goes Whole Hog

I sure what to think of when I first met her. She had a attitude that was intriguing, but wasn’t her thing and I didn’t her my type. She was different than girls and, at first, I respect her much.

Things she did to annoy me but I eventually warmed to her presence.

And so it went with my on the XB12R Firebolt, a larger-displacement of the radical XB9 series from that is powered by hot-rodded Sportster engines. While the get motivation from a 984cc, air-cooled V-Twin, the new-for-2004 feature a 1203cc stroked

The R that ends the XB series’ denotes the racier version a quarter fairing, lower bars and higher footpegs. The S of the XBs is built in the streetfighter mold, a tubular handlebar that higher and just a small above the headlight. All four of the XBs the XB9S we pitted against the new Monster 1000S) have the innovations such as the large frame rails serving as the tank and the engine oil being in the alloy swingarm.

My relationship Buells began several ago when testing the 1999 M2 with the same 1203cc as the new Firebolt. I was rooting for the concept of an sportbike, and after spending hours with Erik a former pro road racer, I bought in to his innovative way of thinking. alas, an exhaust header pulled out of the Cyclone’s rear near the end of 1600 miles of souring me on the idea of a Harley-powered

Four years later, I sure how I was going to get along the new Buell. The company claims its problems are a thing of the past to intensive RD efforts.

Firing up the for the first time was a reminder of the old M2, as Uniplanar rubber engine allow the Buell-modified mill to around disconcertingly like a bucket at the Home Depot, signals dancing like a crack addict. A rider’s can literally blur while at a traffic light, and the trembling moves around so much onlookers occasionally are frightened the big might jump out of the bike. like having a Mopar V-8 with two pistons missing between your legs,

But the motor’s oscillations appear violent than they thanks to Buell’s Uniplanar system that absorbs of the quaking below. Once the engine magically smoothes out and almost entirely unobtrusive.

with the horizon tilted vertical, the XB12R has plenty of clearance.

But the motor’s oscillations more violent than feel, thanks to Buell’s engine-mounting system that most of the quaking below. underway, the engine magically out and becomes almost entirely

The XB’s powertrain is a mix of the superb and the All 2004 XBs (including the 9s) receive pistons, valves and one-piece rods. The throttle body on the fuel injection system has a diameter than the XB9’s size, and it works almost Cold starts are automatically by the ECU, making the beginning of a a one-button affair. But the FI is not perfect.

The occasionally coughs through the when cracking the throttle especially when hot, and hiccup once caused the to stall when trying to get from a stop light.

When it doesn’t cough, as is the case, the XB12 can serve up a quick sprint from a Thanks to the terrifically modulatable a keen rider can carry the wheel from a … across an intersection, if so inclined. when it comes time to up another gear, the XB’s transmission becomes an obvious

The 1-2 shift is crap and the gearbox noisily when upchanging; shifts sound like a In addition, I found a false between gears 3 and 4. Clutch with a stronger clutch on the 12, isn’t too high, and more shifts are usually smooth.

The opinion is the Harley-sourced air-cooled isn’t a sportbike motor. listen — this rocks.

Working in the XB12’s is that shifts are nearly due to the two-valve-per-cylinder motor’s bountiful This isn’t just an but a powerplant . Saying the XB12 is is understating its available grunt low, akin to calling Anderson pretty.

Torque from the Buell’s big cylinders, but the of the powerband is due to a couple of tuning The beautifully shaped, complex of the head pipes are up 0.25-inch in from the XB9 to 1.75 inches for flow from the 219cc mill. The under-engine muffler is different than its little as it employs a computer-controlled valve Buell Interactive Exhaust.

The opens at low rpm for the best flow, closes in the midrange for optimum before opening again at rpm, responding via throttle and engine speed. The change in was plainly audible during the runs we made with our at White Brothers Racing.

all of the above and what you have is a wonderful street engine. off idle there is more 55 lb.-ft. of torque for immediate lunge. For reference, something the Honda CBR600RR produces its torque of 45 lb.-ft. all the way up at 11,000

The XB12’s torque hovers 65 lb.-ft. from just 2500 rpm all the way until the rev limiter in at 6800 rpm, peaking at a 74 lb.-ft.

With the new engine, we power that will the most demanding sport explains Erik Buell, chairman and chief technical of the company that bears his Not just peak horsepower, but the of ground-pounding, mid-range torque you can use to instantly in any situation.

For the record, the pumps out 92 hp at 6700 rpm on a Dynojet dyno, a significant 20 ponies up on the Lightning we recently tested on a dyno. More impressive the peak number is the pure increase in power through the rev This, as E-Buell suggests, the XB12 engine nearly for street usage.

Check out linear hp curve and bodacious output that lets a rider put down power of the chosen gear.

The new Buell and I getting along well at I cursed inside my helmet the dearth of top-end power wringing it out, and the clunky, Fergusson gearbox was annoying as I off upshifts and downshifts like I was a 600.

It took me awhile, but I got into the Buell swing of I was riding home one evening, but tuned in to the machine. I was in no hurry, but I had a sensory sensitivity to everything me. (No, I was not smoking anything.) than try to hurry things, I them down, letting the V-Twin launch me from with authority while my shifts below 3200

It turned out to be a pleasant kind of Not boring in any way, but not manic, as I let the oodles of torque whisk me my way effortlessly.

I took the same to one of my favorite SoCal canyon Latigo Canyon is a tight and snake that winds its way Malibu’s coastal area the Santa Monica Mountains. It something like 212 corners in than 10 miles, so you can imagine there are plenty of tight and not a lot of straightaways.

Buell Firebolt XB12R
Buell Firebolt XB12R

It was here that the helped me achieve something I think was possible: I rode the road in third gear!

using only one gear the quickest way to get through Latigo, the fact that it’s to do it and make good time is as speeds varied from mph. The beastly motor cleanly from as low as 1800 and it pounds out the torque like a big V-8 as the revs rise.

The 12’s of torque results in less and smoother application of power, the new and stronger belt drive results in virtually zero lash like you get with a or shaft-drive. In this respect, and a smooth throttle uptake the fuel injection, this is the drivetrain I’ve experienced on a with not a hint of the abruptness other injected bikes when re-applying the throttle out of corners.

With a scant 52 between its axles and loads of the Firebolt makes for fun Buelligan

Next I moved on to a different Orange County’s famed Highway, where the road curves at a more relaxed than the frantic Latigo. time I took a passenger The zero-lash driveline and seamless injection results in less bashing, making the XB12 a two-up motor.

In these wider corners I stay mostly in fourth for a casual yet brisk ride.

For who are incessantly whining about not the passenger accommodations, this is lucky day. Buell has the passenger pegs two inches than the 2003 XBs, and so it now decent legroom for your The rear seat, however, harder and harder as the ride on, and the toes of your back-seat will go numb after a freeway stint.

A plastic seat cowl slips the rear seat when solo.

I’m quite to test brand new motorcycles all round, but, like of us, I’m not fortunate enough to on a canyon road. That a fair bit of superslab riding our sportbikes can thrive in the environment for they were created. The close-coupled riding position force too much pressure on and my 5’8 body wasn’t scruntched up.

The legs of taller might get cramped from the pegs that offer of ground clearance.

The 43mm Showa fork proved to be plush, offering a surprisingly freeway ride considering the ultra-stubby 52.0-inch wheelbase. The shock’s compression damping was set a out from maximum when we the bike, and changing it to three out improved the ride quality rear rebound was changed ¾ out to 1.25 out from maximum. adjustments at both ends highly responsive to twiddling.

centralization is apparent in this as you can see the heavy engine, fuel, muffler and transmission all stacked in the middle of the bike.

At 80 mph, the engine is spinning at just rpm thanks to a taller primary ratio than fitted to the At that speed, it’s a cruise, with ample on tap for quick blitzes past cars without the need to Speeds above 80 mph have the in an rpm where vibration begins to get eventually numbing a rider’s

Despite the vibration-isolating engine vibration sneaks through the clip-on handlebars and the firm a skinny … will get after more than an in the saddle. Mirrors, on longer in 2004, are decently placed, but several rev ranges that the images quite badly.

into a corner is always by a straightaway, and it’s at the end of the latter you want the best binders to get you down. Scrubbing off speed on the XB is the responsibility of the trick-looking perimeter-style brake.

Here’s the theory: A 375mm rotor with caliper is used because it unsprung weight compared to a setup; and the perimeter mounting isolates the front wheel most of the braking forces, a front wheel with spokes, further reducing weight. In practice, it proved to be to modulate and has plenty of power for the The 240mm rear disc and single-piston caliper isn’t strong, making it easy to without locking the tire

Buell Firebolt XB12R
Buell Firebolt XB12R

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