W-Tec's are really popular in Europe racing scenes... (super light)
Check out this W-Tec Eraser (CR500 Powered...) SICK!
troybilt
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seen photos of it before its not cheap but cool
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when i saw them new also with other powerplant it came out to 17,800$ at the time
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2,098 Posts
Watch the video, looks the same as MX racing the states to me.. LOL! Thing flies! I like innovation. The front suspension unsprung weight is totally reduced with this design. Constant camber angle, zero bump steer, integrated steering dampner... the benefits are many...
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It just amazing me as an avid engineer and motorsports entusiast, how one could design a bike/quad or even just parts/components with better designs, but it would be rejected here (USA) cause its different from the norm, just our society I guess.
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999 Posts
we are surely set in our ways. i too am an engineer and motorsports enthusiast and wish a few of us could get together and design and market the perfect machine, like highland had in the works. sad how their project ended.
on an engineering note. i believe i would see better performance if the front a-arms (type we use) with the shocks on a lever in the area about where the stearing stem is located. obviously without interference.
john
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gains in camber is something you want. I cant see close enough to tell how they got zero bumpsteer. it looks like the wheels would move forward instead of outward as it goes thru its travel.it seems to me that this would create bumpsteer.I do think its very cool and would love to ride one
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the fact that the front end works like two swingarms will only benefit the rider. it should eliminate the push that makes that one rear wheel want to pop up when cornering hard. its hard to explain how the front end and rear end oppose each-other but anyone who rolled their quad coming into a corner too hard know the physics personally.
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john
.john
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441 Posts
They motocross them... that's why I was so confused in my earlier post. The USA is looked at as the forefront of MX and ATV racing IMO, people come from other countries to compete with the best here. Yet we don't use anything like this machine I guess that's the part that confuses me? I'm guessing cost is a factor but I would think someone would pony up as they do for the Walsh hybrid if it gave you that much of an edge?
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1,057 Posts
The snowmobile industry used a variety of single leading arm suspensions (although they are mistakenly called trailing arms) over the years and have all adopted a arm setups. I wondered years ago why they didn't try a dual leading arm like this W tec has. I personally believe that the rear suspension on race quads have more room for improvement, there is far to much unsprung weight in our current swingarm and axle arrangement.
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I'll tell why they don't get raced in pro mx here: the AMA and their stupid pro production rule. IMO the Suzuki Quadracer 450 ought to outlawed now too. W TEC has been around for quite awhile now (I remember seeing them back in the 1990's) and have almost always shoved HUGE engines in their quads(used to be big rotax 2 strokes and the EML jumbo which was a 800+cc 2 stroke twin). What a ride those must have been!
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I'm not an engineer, but that doesn't look like a natural motion for the front suspension. In order for it to travel up, it has to travel forward into whatever is directing it up. It looks like a lot of force gets placed on the front uprights of the frame. It is pretty cool looking overall though. Interesting choice of tires for mx style racing.
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Lot's of sand tracks and some beach races in Europe which would explain the tires.
Check out a pic of the jumbo. They are used alot in sidecar mx
http://i701.photobucket.com/albums/ww12/Last_Minute_Racing/Gawler%20Bike%20Show/20121112_124321_zps772c77de.jpg
Here's a vid of some sidecar mx. Pretty crazy
Sidecar motocross the best - YouTubeSorry for the thread-jack Troy
Check out a pic of the jumbo. They are used alot in sidecar mx
http://i701.photobucket.com/albums/ww12/Last_Minute_Racing/Gawler%20Bike%20Show/20121112_124321_zps772c77de.jpg
Here's a vid of some sidecar mx. Pretty crazy
Sidecar motocross the best - YouTubeSorry for the thread-jack Troy
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