PLEASE HELP................NEED ASSISTANCE ...........PLEASE READ

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Posted by Steve on August 7, 2005, 9:14 am
 
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I am in the Navy in San Diego and need help building a chopper.
 
what length forks do i need for my bike to set level with motor tranny
an rider?
 It is  a santee tallboy frame with 10 in the downtubes an 6 in the
backbone,

it has 43degrees in the neck, the rear tire size is a 250/40/18 avon
an the front is a 120/3.15/21 inch

 I  am stationed in san diego cali an the bike is setting in my
parents house back in Texas.

 I  would like to have 3 degrees in the trees or no degree in the
trees, which ever is safer.

 I  have asked everywhere I can think of to find out what length forks
i need, please help .

 Please e-mail me because I have limited access to AGENT

 robertscvn68@yahoo.com


Posted by Jack Hunt on August 7, 2005, 10:18 am
 

wrote:


You've come to the right place.  I wouldn't think of going any shorter
than twelve feet.  Thirteen if you're not superstitious.


--
Jack

Posted by Beav on August 10, 2005, 6:20 am
 



I would think that to be sure what length you need, you'll have to resort to
using a tape measure. Set the bike on blocks under the front of the frame
with the back wheel on the floor, weighted to account for the riders bulk,
then measure from the top of the headstock to the ground through the 43
degree rake line, taking into account the front wheel centre and trail.

And even easier way is to fit the triple trees and take your front wheel and
a length of wood/steel. Slide the wood/steel through one of the triple tree
fork and line the wheel centre up with the wood/steel and mark it. There's
your length. Get the help of a friend to hold things together while you get
to measuring. job done.

As for which is safer (3 degrees in the trees or none) it's probably more a
case of which will give you an easier bike to steer. No degrees will make
the steering slightly sharper than the 3 degrees (probably sound better than
the 3 degrees too:-).

All this can be done on paper too, if you have the dimensions of both
wheels, the height of the headstock (or top of the top triple tree) when the
bike is sat level and the rake angle of the headstock and trees (if you
choose the 3 degree trees).




--
Beav

Reply to "beavis dot original at ntlworld dot com" (with the obvious
changes)



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