yfz450 vs yz450f
 

Sorry, just found this thread, thought I would more or less speak up. I think to put it simply, A stock 125 motocrosser would put give the quad fits. close to identical horsepower and a fraction of the weight.
Bikes will always when this one, unless of course someones racing a nitrous banshee against a stock cr 125 or something.
I have been riding for almost 30 years, 80% of that on Bikes. I use quads as recreational trail riding and putting around the house. When it comes to blasting up hills, the bikes rule, flat out hauling, the bikes rule, huge jumps, the bikes rule.

Ron
04 Sportsman 400
03 200 EXC
02 520 EXC
00 cr 500
97 cr 500
85 Eliminator 900

yfz450 vs yz450f
 

Finally, I found the site with the videos.

Check out these vids:

Two bikes getting smoked by almost every quad in the line on sand
http://www.eskimo.com/~daddog/videos/golotsa.wmv

Side by side drags (look at the 40 sec mark. Two bikes in the lineup)
http://www.eskimo.com/~daddog/videos/golotsa2.wmv

Hillclimbing
http://www.eskimo.com/~daddog/videos/zyzcr450.wmv

One thing you can't tell is if the bikes are running paddles.....

And check out the other videos.
http://www.eskimo.com/~daddog/videos/

This guy has some really awesome stuff. If you love the YFZ, you will love the vids.

It's even got a vid of an 800cc snowmobile motor in a banshee frame approaching 60mph UP choke cherry!

Check out the stock YZF to a YZF with cam, airbox and baffle mod. Holy $%^!!!

yfz450 vs yz450f
 

in the dirtwheels article, the yfz450 has the best lap time on the mx track by 3 seconds, but the yz450f has the best lap time in the woods by about 5 seconds.

yfz450 vs yz450f
 

hey rennym, whats the name of the vid with the 800cc 'shee.

yfz450 vs yz450f
 

http://www.eskimo.com/~daddog/videos/laborchoke.wmv

About half way through the vid.

yfz450 vs yz450f
 

Hey guys i havent seen this but i have done these things myself.. ok. My friend has a yz250f and a yz450f. He dosent ride quads but my raptor has beat BOTH OF THEM IN SAND. i have not yet beaten the bikes on concrete but the bikes havent beat me in sand yet. and he is a very good rider.

yfz450 vs yz450f
 

hey rennym, whats up with those links? i cant get any of em to work. PM me the main site or something. thanks

yfz450 vs yz450f
 

both machines are top dawg

yfz450 vs yz450f
 

ill never pass up the oppurtunity to ride a bike. I love em! My uncle has a 79' Yammie 100cc two stroke on original top end, and it is SO much fun.

yfz450 vs yz450f
 

A buddy of mine has the YZ450 and a friend of his has the YFZ450. They only ride in the dirt/gravel, so I can't attest to the sand-tire-traction issue, but he told me that in a flat drag (which they did numerous times) on a gravel road, the quad jumped out in front for the first 20-30 feet, until the YZ got traction, and then the quad got blown away.