top speed on a Yamaha YFZ450?
454353
65-72 mph is what i've seen, but they sure do get there fast!
33881
There is an easy answer to this question:\n\nGo get fit for a new 460 cc Titanium driver....you're guaranteed to get more distance with the new large clubheads!
1031387
As far as reving high, you need carburator adjustment. This may solve the choke problem as well. For the bike kicking into gear by itself, if it is new they will do that until broken in properly but if it is older you need to check the clutch plates as they may be worn and need to be replaced.
148623
you won't notice a difference with 5 hp gain, you want top end or bottom end speed, i suggest changing rear end gears for big torque gains, can make a little 4.6 boil those tires but not mess with factory engine components that are set for optimal engine life. e-mail me for  furhter help, jsconyers6401@charter.net
870849
Depending on the size 3-5 mph
518003
Use D-Link brand\n\nit is powerful and will give you max speed
151091
If you want accelleration you get a higher number gear ratio but it will cruise at a higher rpm on the highway. It will be quicker off the line, but not faster on the highway.\nIf you want a higher top speed you have to use a lower number like 2.19...
962922
Yes, the 800's will outpace the 990's at certain tracks.\nCircuits with lots of corners and small straights, as these bikes carry more corner speed and are significantly down on power in a straight line... demonstrated pretty well by the Ilmor bike!\n\nlap times are already tumbling from the first tests... so Donny and Sachsering for sure!
274137
full suspension is not really needed front shocks are nice thue I use a Trek 4300 its a hard tail but its a graet bike and I'de recamend it for anything I've used it to mountain bike and I've ridden it on the road and getten up to 45.1 mph and it cost only 460 bucks new incloding tax so thats my two cents hope it helps
521861
I have owned Harley's and crotch rockets. There are several things that make the sport bikes faster. 1. weight 2. aerodynamics. 3. horsepower 4. high revving 5. longer stroke\n6. higher compression.\n\nI owned a GSXR 1000, and it would do zero to sixty, in under three seconds. I also owned a 1200 Sportster, and it would do zero to sixty in around six seconds. My Sportster had around 60 hp, and my GSXR had 145 hp. So, you can see that CC, doesn't mean that much, it's what you do with that engine. High revving and more compression are probably the biggest differences.\n\nThey both are fun to ride, and one isn't better than the other, it's what kind of riding do you want to do. I personally think you need both.\n\nGood luck and have fun.
288970
how to change it depends on your bike. when changing speeds you MUST be pedaling. if you are not it messes up the gears (i learned that the hard way).  you want to use speed one when you are going uphill or the going is harder.  the high speeds are used when the land is flat and smooth or when you are going downhill. i hope this helps!
249403
wats the top speed of ur car?????
305874
That is a very personal question.  You will need to ask yourself, after riding on a 7100FX do i feel as if I am experiencing upper body soreness?  Do you experience numbness while riding?  Do you experience lower back pain as you ride?  All of these questions could lead to a suspension fork issue.  Words such as bumpy, muddy, and flat are all reponses that require a great deal of context and personal input.  I have been on mountain bike trails that I would not consider "bumpy" but would use a suspension fork.  So the question becomes are you experiencing problems after riding your 7100FX?  If you are, perhaps you should move to the 4500.  Be aware however that the more suspension you add, the increased possibility of performance loss.  No suspension system is perfect and will obviously cause a loss in pedal stroke power when it comes to suspension "bob."  If you are unhappy with both models, you could perhaps look at a cyclocross bike.  Most come without suspension but will dampen some of the bumps via the frame.  Therefore, you need to ask yourself, am i experiencing problems with the current bike I am riding or are these issues fine and do not want to risk the loss of performance.
442213
Fastest motorcycles I've ever been on. DUCATI is the Ferrari of motorcycle- so fine, so fast......Everythiong Ducati makes is the best of the best, forever!!!
71917
the fastest I know of would be the Bugatti Veyron 16.4.  they are handbuilt with a 1001 Euro (987 SAE) horsepower, 8.0 liter quad-turbo DOHC 64-valve W-16 engine with 7-speed auto-clutch manual transmission, and tops out at 250+ mph.  in the 7th gear, the car gets less than 3 mpg.  a second key is required to program the engine into "top-speed" mode, where you can go 0-250 in less than 60 seconds.  an air-brake is required to take the car down from 250+ to 160 mph, and the audio system alone costs US$30,000.  a deposit of 350,000 is required to place an order, for a final cost of about $1.25 million.  it will be available in the US about summer 2006, and was recently featured in the January 2006 issue of Motor Trend magazine.
162388
the max speed is higher on the 290.  the engine is also bigger.
695942
first of all, AWSOME BIKE. I have one of those....dont put pegs on it whatever you do or you will break the axle..its a dirt jumping bike, not for freestyle. Expensive upgrades are the lightest...heres the cheapest ways...first, remove the plastic chain guard if it has one, second, get light weight tires, third, get lighter cranks, fourth, get lighter rims or build your own, (i build my own bikes) fifth, remove any reflectors, they are pointless, anything you see on the bike that can be removed and still make the bike work.....i have about $500 worth of upgrades on my 07 X1