If you analyze the bikes in past decade, you can easily witness many technological changes and improvements. Here are some most reputed and sought after choices for the customers. Take a look on the bikes which were loved by majority of people.

Yamaha YZ250F-
when this bike entered the market in 2001, it was an instant hit for the good reasons. It’s the most popular 250cc four-stroke bike, people were very much keen to experience its power and torque compared to the 125 two stroke. The company ‘Yamaha’ knows how to make four-stroke bikes simple. It has been always known as the most reliable out of its entire class. In the starting people found it little tricky with its manual decompression, but once it was figured out, the bike was a force to be reckoned with. No need of clutching at every corner, bogging out and casing jumps, or having to perfect your shift points. Once people got aware of its functions, everyone wanted one. The thundering sound of a four-stroke was loved by many but also it was hated by many.

Honda CRF450R
Red color was made popular by Honda. This bike is almost near the top in every performance category but one thing where they lacked was reliability. Though they are rated as full on race bikes, but some of its early model had some problems. Honda has always been known to make dirt bikes that handle well. The ergonomics are really great for most of the riders. Overall this is a very powerful, easy to ride fast and great handling bike for riders of all experiences, which is why the bike is so popular.

Yamaha YZ450F
Yes, again its the Yamaha bike, it is famous not only for its two-strokes good but also for the four-strokes. There was a time when bike was titled “Impossible to ride.” this bike have lot of torque just because it’s a 450, its top end power was almost unbelievable. Whatever, the bike is really great, it might be a bit tough on the less experience riders. The bike even got better in 2006 with all-new aluminum frame. This also reduced the weight which ultimately helped in handling. Its suspension is really good in stock form. The power curve changed drastically, changing from a top-end monster to more mellow beast. Some likes this bike a lot and many didn’t like it.

Yamaha YZ125
We all know that four-strokes have dominated the market but that doesn’t mean people don’t buy two strokes anymore. Four-strokes are quite an expensive affair so not every one wants to spend that much of amount. Even 125 two-stroke is a very fast bike especially when properly tuned. The Yamaha YZ125 has reigned as “the bike” to get in the 125cc-class for many years now. It might not be the best market but surely arguably one of the best motorbike in its class because of its versatile nature. Unlike the other bikes it has some bottom-end power. So if you are not afraid to finger the clutch a little, you can turn it into a woods weapon just because it is so light. The center gravity of this bike is so light,

Yamaha YZ250
The lightweight aluminum frame and updated suspension makes the bike nimble, quick and really easier to ride. Power right out the box is excellent for most of the amateur, so there isn’t lot you need to do for to be competitive, other than suspension re-valve for your weight and riding style. The best modification for engine is porting. Its relatively cheap, and if you get it done by the right person this bike will absolutely be a rip.

Aprilia Updates SXV 4.5 аnԁ 5.5

Aprilia’s radical v-twin supermotard bikes, thе SXV 4.5 аnԁ SXV 5.5, receive ѕοmе noteworthy updates fοr 2008. AƖѕο unfilled fοr thе nеw develop year іѕ a “VDB Replica” based οn thе relationship between Aprilia аnԁ thе multi-time planet supermoto champion Thierry Van Den Bosch.

Both thе ordinary apparatus аnԁ thе VDB Replica receive switchable engine mappings (fοr high traction аnԁ low traction situations) іn addition tο οthеr modifications. Here іѕ Aprilia’s description οf thе VDB Replica.

inner-city entirely frοm thе partaking οf Aprilia Racing, thе SXV 2008 VDB Replica іѕ thе peak οf Apriliarquote s competition apparatus. Wіth nο additional modifications whatsoever, thіѕ dirt bike іѕ аbƖе tο compete іn аnԁ dominate аnу competition іn thе planet. Thе SXV 2008 VDB Replica іѕ thе initially step іn thе evolution οf thе apparatus thаt Aprilia wіƖƖ bе inflowing іn thе 2008 Supermotard Planet Finals.

Thе 2008 VDB Replica differs frοm thе ordinary 2008 SXV іn a number οf vital technological fine points thаt mаkе thіѕ bу now vastly competitive apparatus even nearer οn thе track. Thе 77’b0 V twin engine, unfilled іn 450 аnԁ 550 cc versions, іѕ substantially similar tο thе ordinary potential sow bυt features modifications tο a number οf essential transmission раrtѕ. Thе multi-plate wet clutch incorporates a sophisticated slipper contrivance tο mаkе handling smoother аnԁ more efficient οn access іntο bends, аnԁ thе gearbox features nеw ratios plus a strain nеw electronic control unit linked tο thе ignition logic, allowing thе rider tο dodge bу thе clutch whеn shifting frοm one gear tο another, ensuing іn nearer gearshifts аnԁ less weight conveying under аt-thе-limit riding conditions.

Jυѕt Ɩіkе thе ordinary 2008 SXV, thе nеw VDB Replica offers two uncommon engine mappings thаt саn even bе switched during thе course οf a rасе simply bу pressing a switch οn thе handlebars. Thіѕ οnƖу one οf іtѕ kind feature lets уου adapt thе enginerquote s potential style οf language tο changing track conditions аnԁ levels οf tyre wear.

Thе skeleton tοο incorporates innumerable improvements. Thе frame іѕ lighter subdue, thanks tο point changes mainly involving thе die cast aluminium side members, аnԁ thе swingarm іѕ shorter аnԁ lighter thаn οn thе ordinary SXV. At thе front, a mighty, 50 mm fork wіth three uncommon offset settings іѕ bolted tο two aluminium yokes apparatus frοm a release station. Thе brakes аrе completely uncommon tοο. Thе combination οf a Brembo release piece radial front caliper аnԁ a 320 mm wave disc speak fοr thе state οf thе art fοr thіѕ type οf apparatus.

Amοnɡ thе οthеr fundamentals thаt mаkе thе SXV VDB Replica οnƖу one οf іtѕ kind аrе іtѕ Alpina 16.5rdblquote front аnԁ 17rdblquote rear wheels wіth hubs machined frοm release billets, carbon fibre fuel tank, stepped seat tο prevent thе rider sliding back under hastening, Arrow under-seat exhaust аnԁ super-lightweight titanium fasteners. linelinei Colours, specifications аnԁ technological data mау bе theme tο exchange without prior see.

The 2012 KTM 450 SX-F Factory Edition is a special model purpose built to allow Ryan Dungey to ride this machine in the AMA Supercross and Motocross Series.

Ryan Dungey is a bad dude, but when RD5 pulled up roots and headed over to KTM to join Roger DeCoster we wondered if he would be competitive on the current 450 SX-F. Turns out we will never know as he immediately went to work riding an all-new model. This brought on more questions; that is until KTM dropped the release of the 2012 KTM 450 SX-F Factory Edition back at the first of the year. Then it became crystal clear, sort of.

The big question was how and why KTM would roll out a second 450 SX-F model for 2012? In order for Dungey to compete on the new model, KTM must have 400 examples for sale in the US. So beginning tomorrow, 200 Factory Edition bikes will be available for the general public followed by 200 more on June 1st. This is where we as mere mortals get to reap the rewards from the AMA homologation rules. Team Orange chose its words carefully in saying this is an early release of the 2013 model. They said that it is a glimpse, but most likely not the exact machine we will see for sale next year.

Tech Details

Although the engine is vastly different from the current 2012 KTM 450 SX-F, the Factory Edition’s mill is not exactly all-new. Based off the 450 and 500 XC-W powerplant, the FE’s motor is smaller in physical size and lighter by 4.4 pounds. Not
The 2012 KTM 450 SX-F Factory Edition is a sneak peek into the what the 2013 450 SX-F will be like.
The 2012 KTM 450 SX-F Factory Editions engine is based on the 450 and 500 XC-W powerplants.
The simplified ans smaller engine of the 450 SX-F Factory Edition is based on the 450 and 500 XC-W powerplants.
only was the goal to cut weight but to also reduce reciprocating mass. By integrating the balancer shaft and water pump and going to a single overhead cam design, KTM has reduced rotating mass by 1.8 pounds. Fueling the smaller and simpler engine is a new 44mm Keihin throttle body featuring separate controls for the idle adjustment and choke. To support the new fuel system and engine, a new muffler and air boot have also been designed to boost power output.

The engine is big news, but the updated chassis is even more noteworthy. KTM engineers started with a steering head crossbrace to increase the rigidity during corning and braking. With a smaller engine the cradle tubes were made thinner and the ground clearance was increased. The suspension is the same 48mm upside-down WP closed-cartridge fork and WP shock as on the standard 450 SX-F, but the settings have been revised to work with the stiffer frame. A new lower triple clamp is designed to reduce stiction of the front fork. At the rear, a new swingarm features a new 25mm axle for additional durability and strength (formerly 20mm).

Slim bodywork wraps around an all-new fuel tank. Additionally the front fender, number plate, airbox and side panels are fresh units. Factory Red Bull graphics come standard complete with RD5 numbers and team sponsor logos. Black Excel wheels, an orange anodized sprocket and Renthal 827 Fat Bars finish off the Factory Edition.

On the Track

With so few units available we were allotted just one day to ride the Factory Edition. We met up with the KTM crew at Lake Elsinore Motocross Park to turn as many laps as we could to give you the scoop on one of the most exclusive MX
The 2012 KTM 450 SX-F Factory Edition is a much improved handler from the standard model.
The 2012 KTM 450 SX-F Factory Edition has more motor everywhere.
The power output has improved from the standard model in every area on the Factory Edition.
machines for 2012.

Right of the bat the difference between the Factory Edition and the standard 450 SX-F is apparent. Throttle response from the new EFI system is instantaneous and crisp. Almost too crisp until you adapt the light throttle feel and newfound power. Right off the bottom the FE comes on strong and pulls hard until it begins to taper off in the upper rev-range. The new motor just has more everywhere.

“On top of KTM’s already cool features to their existing 450 SX-F, the Factory Edition far exceeds their standard motocrosser!” exclaims our pro-level tester Matt Armstrong. “It starts off with more horsepower, a noticeable difference in the midrange with more top-end power that allowed me to hold it on harder into corners. Also the motor seemed to have a smoother power delivery, which helped make the bike easier and more fun to ride!”

Handling is also is a whole new ball game with the 2012 450 SX-F Factory Edition. Where as we felt the 450 SX-F tested in our 2012 450 Motocross Shootout struggled to drop into corners and took too much effort to turn, the Factory Edition is sharp and nimble. Although the steering feels light, there is not even a hint of twitchiness or instability.

“One thing I’ve never liked was the cornering characteristics of the standard SX-F, but the new FE has a much more planted feel and really stuck into tight ruts without wanting to stand up when entering with speed,” says Armstrong.

Suspension settings for the Factory Edition are balanced and stiff yet compliant at the same time. Small chatter and braking bumps don’t upset the SX-F at all, and at the same time the WP suspension eats up big hits and jumps.

The 2012 KTM 450 SX-F Factory Edition feels lighter and more flickable than the standard model.
If the 2012 KTM 450 SX-F Factory Edition is a preview of what is to come from KTM, then we are excited to see what happens in 2013.
“The suspension was aggressive yet plush,” comments Armstrong. “I really liked where the suspension sat in the stroke. It was nice and progressive and had a good planted feeling with out any harsh or violent impacts.”

The only complaint on the suspension was a spike in the mid-stroke when the front end slapped down when banging through the rollers. Backing off two clicks on the compression on the forks all but eliminated the spike. Overall we were very impressed with the difference between the standard and Factory Edition.

In the past the KTM cockpit has been one of the largest, almost too large for some of our riders. The FE is a bit more compact and more comfortable; the reach to the new Rental Fat Bar feels natural and comfortable.

Armstrong adds, “The rider compartment felt less open and more fitted, which I think helped the bike corner better as well.”

At the end of the day, we were hesitant to return the 450 SX-F Factory Edition to the KTM crew. Even though the FE might not be exactly what the 2013 450 SX-F will be, we know it is very close and that is a good thing. All we can say is there are going to be 400 very happy KTM owners this year. Are you going to be one of them? I know I would be.