RAKE AND TRAIL FOR TRIKES |
For information about rake and trail click on the fork geometry and measurement button below in the links area. |
I asked a couple of known trike builders the question concerning rake. All the the answers all seemed to agree....... |
I think you pretty well covered it. A VW trike with a long rake, in my opinion, looks better, |
rides better and makes more sense because your front wheel in leaning into the turn. |
This takes a lot of stress off the front end and front wheel. |
On the other hand, a V8 trike or any other trike with a lot of weight on |
the front end can't handle a long raked front end because of the |
downward stress of the extra weight. They have to have a heavy front |
end that is fairly vertical or you bend components in a hurry. |
Another thing that determines rake-ability is the type of front end. If |
you are riding on tubes there comes a point fairly early in the game |
where the tubes will not operate correctly. I like springers for this reason |
and LOVE girders. A 12 over girder leading down the road is hard to beat |
and they ride like Granny's rocking chair. |
For VW or other rear engine trikes the rake is a matter of choice and |
esthetics. Too much is made of it. I've built two with stock Gold Wing |
rake and they rode great. I built two with springers and they rode great and I looked BA_A_A_AD!!!! |
Build it for you and get the look YOU want. Chances are good that it will |
ride great. If it doesn't, fix it. It's called adventure! |
|
Another answer: |
From past experience in riding different models of trikes from bugs |
to V8's..I've found that the straighter the forks (less rake) the |
more front end wobble on low speeds and bumps, definitely a |
steering damper needed there, although it is more prominent on |
heavy front end machines like the V8's or front engine trikes. Long |
rake also helps alleviate the washout sensation when taking off from |
a start and turning. It also helps if the trike has at least a front |
end weight of 10% of the total weight of the machine and rider |
amount of rake. The longer the rake the more apt to go with |
springers or girders as the motorcycle type forks were not meant to |
flex parallel to the ground but to ride up and down in the sliders. As |
for stability (and looks) I like the springers if ya can get a heavy |
enough spring for them to not be susceptible to bottoming out on |
speed bumps or potholes...jus my 2 cents worth... |
Another input.... |
||||||||||||||||||||
My rake is 42 degrees, trail is 1 1/2". Corners like a dream at all speeds. taking curves a |
||||||||||||||||||||
little In fact I find myself faster than I probably should be, |
||||||||||||||||||||
The point I wish to make is this. I have seen and |
||||||||||||||||||||
read several times on the BTW forum that rake and trail don't matter to much on a Trike. I say, |
||||||||||||||||||||
Bull Shit to that statement. Rake is of no concern, but anytime |
||||||||||||||||||||
you have more that about 4" of trail, your steering will be hard at speeds above 30mph. |
||||||||||||||||||||
And my statement!!! |
||||||||||||||||||||
The rake on my own trike is around 55 degrees, my trail is about 1 inch. I have to agree with the above statement. Just my own humble opinion. |
||||||||||||||||||||
Links |
||||||||||||||||||||
|
||||||||||||||||||||
|
||||||||||||||||||||