My sponsored 78 shovelhead build thread

It’s more complex than that:

http://www.cyrilhuzeblog.com/wp-content/uploads/necks11.jpg

If I derake it at all it will be by removing the downtubes from the casting and shortening them and bending the toptube right where it goes into the casting which actually raises the bike a tiny bit, too.

---------- Post added at 05:50 PM ---------- Previous post was at 05:15 PM ----------

The top model is stock. the second model is 25 degrees

Forks are off a GSXR-1000. 720mm (28.3) from axle to cap. Can be shortened 3" max, but the issue is tree/tire clearance, not fork length or travel.

The trees will be custom made.
stock fork spacing spacing is 6.125" between the tubes
new fork spacing 4.5"
new tire section width is 4.25"

I can clearance the tree for the tire a bit for sure. The tree in the model is 2" thick… I can probably hog an inch out of that… no front brake really decreases the moment load on the tree.

So check it out. Tinkered with it a bit and may have a solution. The images shown are with the fork internally lowered about the maximum amount.

Fork at 25 and even ride height (4.5")

Fork after 2" of travel (about the range of the gsxr shortened fork:

Obviously this is no good. Tons of clearance issues. Also not the fork poking out of the top of the triple tree. YUCK.

HOWEVER, if I raise the fork and push it down into the tree flush (total of 1.25") , i wind up with a slight angle to my frame (1.3 degrees). but the result isn’t too detectable by eye.

25 degrees of rake, 1.3 degree frame angle:

And after 2" of travel:

I could make this work for sure. Again, need to have the forks and wheels on the bike before I can really do much beyond conceptualizing…