Rabu, 10 Februari 2010

2010 Husqvarna TXC 250 First Ride Picture

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2010 Husqvarna TXC 250 First Ride Picture
2010 Husqvarna TXC 250 First Ride Picture
2010 Husqvarna TXC 250 First Ride Picture
2010 Husqvarna TXC 250 First Ride Picture
Visually, the color scheme is a little less sexy since the motor lost its red accents, but the revised body panels still sport the aggressive red/white/black racing lines. - 2010 Husqvarna TXC 250 First Ride, A six-speed transmission lets the rider keep hold of the powerband, though we spent most time in the bottom four gears, letting the high-rpm engine do its own thing. - 2010 Husqvarna TXC 250 First Ride Husqvarna equipped the bike with electric start while also retaining the kickstart option. Plus, the hot-start lever now sits above the adjustable clutch lever. - 2010 Husqvarna TXC 250 First Ride .Husqvarna is attacking the 250cc 4-stroke market with its new line of fuel-injected quarter-liters. - 2010 Husqvarna TXC 250 First Ride
Engine: Type: 4-Stroke, DOHC Single
Engine Displacement: 249.5cc
Bore & Stroke: 79mm x 50.9mm
Compression Ratio: 12.9:1
Cooling: Liquid-Cooled
Fuel System: EFI
Ignition: CDI electronic variable advance
Starting System: Electric/Kick
Transmission: Six-speed
Front Suspension: 48mm closed-cartridge Kayaba fork, compression/rebound adjustable
Rear Suspension: Sachs “Soft Damp” shock, H/L compression/rebound/preload adjustable
Front Brake: 260mm wave disc, dual-piston Brembo caliper
Rear Brake: 240mm floating wave disc, single-piston Brembo caliper
Front Tire: 90/90 R21
Rear Tire: 120/90 R18
Wheel Base: 57.8 in
Ground Clearance: 11.8 in
Seat Height: 37.9 in
Dry Weight: 229 lbs. (claimed)
Fuel Capacity: 1.9 gal.
MSRP: $7299

At the end of our First Ride, the TXC impressed us across the board. It has neutral and comfortable ergonomics, compliant suspension, sharp handling and a good baseline motor. Sorting out the fuel injection is just a matter of time and will depend on how the bike is modified and used. Compared to the rest of the 250 enduros, Husqvarna’s TXC is closest to the KTM 250 XCF-W, which means it’s in the upper echelon of 250 off-road bikes, yet it retails for less than the Austrian bike at $7299.


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2010 Aprilia SXV 5.5 First Ride, Reviews and Specs

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2010 Aprilia SXV 5.5 First Ride

2010 Aprilia SXV 5.5 First Ride
DRZ to an Aprilia, there is a no comparison. I started on a DRZ400sm and now have an SXV450 they are worlds apart. The DRZ is an every day road/farm bike. The SXV is a race bike with lights on it! As for maintenance, changing the oil does not take over an hour. Once learnt it takes the same time as any mx bike. Service intervals are high because of it's pedigree as a race bike and the fact it only carries 1300cc of engine oil. Also the 690SMC is definitely heavier. These bikes have been road raced as well as supermoto raced the world over and are a proven winning machine. Riding one once does not equal owning/riding/racing one. They are different like most Italian marques, be it car or bike and take a different kind of approach to ownership. I'm eagerly awaiting the arrival in Aus and look forward to many more happy years riding and racing one.

The SXV is, as the report said, an incredibly fun bike to ride. The ownership experience has been mostly positive. I have had no issues with reliability. The big unspoken issue here is frequency and ease of maintenance. One the bike has been derestricted, the SXV requires an oil change with every 4 hours of use. For me that means every weekend I ride equals an oil change. For dirtbike guys this is not a big deal. For someone accustomed to a modern streetbike, it's a pain. Not only are the oil changes frequent, but the design of the bike makes them time consuming. I also have a 2009 Husqvarna 510SMR. The Husky's service interval is also short. (not as short) But, to change the oil on the Husky is a 15-20 min job. On the Aprilia it's more like an hour. I 2010 Aprilia SXV 5.5 First Ridelove riding the Aprilia, but I am not sure how long it will live in my garage.The scream emitted during fast idle from the engine’s internal mechanical flurry and the roar of the sleek and expensive looking 2-into-1-into-2 pipe configuration is wake-the-neighbors loud. But, once the engine is up to temperature, the fast-idle knob can be switched off and the engine settles at 2000 rpm, a far less attention grabbing volume.

Punch the throttle and feel the immediate burst of power from the unique 549cc liquid-cooled V-Twin engine. Designed and manufactured in-house by Aprilia, the motor features aluminum cases and a narrow 77-degree cylinder angle that’s said to reduce vibration and eliminate the need to use a counter-balance mechanism. Each piston gobbles up 80 x 55mm dimensions and squeezes fuel to the tune of a 12.1:1 ratio. The top-end consists of twin cylinder heads, each powered by a single chain-driven camshaft actuating four titanium valves.

A dry-sump system engine lubrication system reduces the size of the engine and there’s also separate engine oil and transmission/clutch reservoirs, ala Honda’s CRF250R and CRF450R motocross bikes. This reduces fluid contamination, extending oil life and maintenance intervals.

Right off the bottom, the engine pumps out upwards of 80% of its max torque from as low as 5000 rpm. Torque gradually increases, eventually peaking at 34.8 lb-ft at 9000 revs. This gives the engine such a wide spread of propulsion through its 11,400 rpm range that it makes it difficult not to loft the front wheel through each of the transmission’s five gears.

Despite employing an electronic fuel-injection system, the SXV guzzles down fuel through its twin 40mm throttle bodies like a 5000-lb SUV. In fact, the modest capacity of its 2.1-gallon fuel tank equates to a range of less than 80 miles depending how zealous you get with the right hand. Overall throttle response is excellent and provides a direct feel to what’s happening at the business end of the rear Dunlop tire around the racetrack at speed.

Engine: 549cc liquid-cooled V-Twin, 8-valve SOHC
Bore and Stroke: 80 x 55mm
Compression Ratio: 12.1:1
Fuel Delivery: Fuel-injection
Horsepower: 61.6 hp @ 11,100 rpm
Torque: 34.8 ft-lb @ 9000 rpm
Clutch: Wet multi-plate, cable actuation
Transmission: 5-speed; chain final drive
Final Drive Gearing: 16F/46R
Frame: Hybrid steel-trellis/pressed aluminum
Front Suspension: 48mm Marzocchi inverted fork; 2-way adjustable for compression and rebound damping; 10.8 in. travel
Rear Suspension: Sachs hydraulic shock absorber; 4-way adjustable for high/low-speed compression, rebound and spring preload; 9.9 in. travel
Front Brake: 320mm disc with 4-piston FTE radial-mount caliper
Rear Brake: 240mm disc with single piston caliper
Front Wheel: 3.5 x 17-in.
Rear Wheel: 5.5 x 17-in.
Tires: Dunlop Sportmax Qualifer 120/70-17, 180/55-17
Curb Weight: 313 lbs.
Wheelbase: 58.6 in. Length: 87.5 in.
Seat Height: 36.1 in. Ground Clearance: 12.5 in.
Fuel Capacity: 2.1 gallon MPG: 38
MSRP: $9499
Colors: Black Off
Warranty: Six months, unlimited mileage


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2009 Honda CRF450X ISDE Project Bike Photo Gallery

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2009 Honda CRF450X ISDE Project Bike Photo Gallery




Honda loaned us a 2009 CRF450X to race the ISDE in Portugal. With the shipping deadline looming, we tapped JCR Honda and hustled through a long list of mods to make this enduro dirt bike an international winner.Johnny Campbell Racing was a great resource for helpful tips. They were kind enough to help prep our bike (left) while getting Timmy Weigand's (right) ready as well. During the original bike build project, I did a number of modifications that were aimed towards protecting the bike. One that I had the opportunity to test was the rear brake pedal and the Rekluse billet clutch cover

. On Day 6 I spun the rear end around coming out of a slow corner and low-sided the bike. This low-speed fall was enough to significantly bend the brake pedal and dent the billet cover, and that was even with the brake snake and rubber protector on the pedal. It clearly would have put a hole in the stock clutch cover. I am sure some of the other protective mods came into play at some point as everything else held up splendidly.
Modification
Updating the settings inside the Honda fork was high on the priority. Javier Gonzales at Trail Tricks has suspension testing experience from the actual race location in Portugal. No-Toil sent some of their rim lock nuts that cover all the threads to keep things clean and the red color makes them easy to spot. The radiators on the CRF are particularly vulnerable so a set of Works Connection braces should cure that. Like nearly all the aftermarket parts I used on the X project, the radiator braces took about 5 minutes to install and were a perfect fit. A Rekluse Pro Model auto clutch is a necessity for me. The auto clutch provides a huge relief to my wrists and hands over multi day races. The first order of business was to take care of the suspension. I have had lots of luck working with Javier Gonzales at Trail Trick. The stock starter switch is rather large and it slots into the throttle, so you cannot adjust the throttle position without also adjusting the starter. It also makes it difficult to find room to add bar-mounted handguards. The welder also fabricated a nice rear axle pull to help speed tire changes. Six Day rules require a speedometer and I had a stock KTM one handy and it even fit right into the stock mount on the top clamp. A BRP chain guide made the list, but check out the reinforced welds to keep it from snapping off the swingarm. ISDE format racing virtually necessitates having a kickstand. The Pro Moto Billet KICKIT is lighter, stronger and less obtrusive than the stock version. The entire top of the airbox was cut out to improve air flow. While working on the air box we also did some careful knife work around the edges. There are sharp lips on both the top and bottom of the side opening of the air box and when changing the air filter these constantly snag the foam.Knowing that the bike had to stay at 94db for ISDE use, I decided to try a FMF Q4 slip-on and that did help wake up the mid-range as well as giving just a little more on top.



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Kamis, 04 Februari 2010

Clarke and Suzuki on top at London Supercross

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Published: 01st February 2010

Author: Suzuki Racing

MVR-D Suzuki wild card rider Steven Clarke finished the final round of the British Supercross Championship on the top step of the podium once again after the British-born American Supercross regular stormed to victory in the British and SX2 International finals at the O2 arena in London at the weekend.
Returning from the US on Friday evening, Clarke - who missed the opening two rounds - was in his usual blistering form, taking the win in both heat races on the 2010 RM-Z250, before going on to dominate the British final, leading from start to finish, then taking the SX2 International final win too on the last lap.
Said Clarke: "I've got to be pleased with my performance. The bike ran perfectly and I felt really comfortable in all heat races and both finals. I attempted the SX1 final, but was just too tired from both races and all the recent travel, so decided to call it quits early. A big thanks to the MVR-D team for their support in the last two events. I hope I've paid them back with the results."
Team manager Mark Chamberlain said: "Big congratulations to Steven. He rode extremely well and showed the potential of the new RM-Z250. He returns to the US now, but we are delighted to be able to confirm that he will join us for a couple of races this season, to get in some all-important outdoor practice."

Final Championship Standings:

British Open: 1st Crockard, 2nd Dodd, 3rd Tollet, 4th Greedy, 5th Clarke (Suzuki).

Pro SX1 Open: 1st Facciotti, 2nd Crockard, 3rd Blizzard, 4th Goosen, 5th Voss.

Pro SX2 Open: 1st Facciotti, 2nd Beaton, 3rd Blizzard, 4th Goosen, 5th Knowles.


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Selasa, 02 Februari 2010

Wallpaper Dirt Bike Supercross 2010 Freestyle

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Wallpaper Dirt Bike Supercross 2010 Freestyle

Wallpaper Dirt Bike Supercross 2010 Freestyle




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