Starting my first ever project. GSXR 1000 front end on a GS

[Gerry]

I was out in the garage today putting my bike back together and thought I would take a few measurements after reading this thread. Don't know if this helps or not but here it is.

I run a 89 GSXR 1100 front end on my 84 1150. The 89 front end is 29 3/4 " from the top triple to the center of the axle. I didn't hit anything last year and I have a steep entrance to my driveway. I do keep the rear real stiff (Fox shock) so it doesn't sag much, this probably helps as well.

I just happen to have my old rim and the GSXR rim side by side and took a measurement. 110/90/16 was 3/8 shorter than the 120/70/17. I used a level across the two tires and took a measurement. Not the most accurate but gives you a ballpark measurement. I think the old tire (16") had more rubber on it as well so you might even be talking a full 1/2 " :-).

The only problem I have is when the bike is on the side stand (no center stand, 4 into 1 hindle) it looks like it is sitting straight up and wants to fall over.

Hope some of this info helps.

[Anonymous]

Well that doesn't sound too bad. about how much clearance do you have from the headers to the ground when it's on the sidestand? Ever have issues with speedbumps or how about in tight turns?

So, it's sounding like I'll actually gain a little room when I switch away from the 16" wheel, which is awesome. And if Gerry's bike is any indication this just might work out after all :P

[Gerry]

Unfortunately I can't give you an exact measurement of ground clearance because it's still all apart.

As far as issues with speed bumps or tight turns, not any all last season.

One thing that was pointed out to me (by Billy Ricks) that the forks won't compress as much as they did with the old front end. This will be even more true with the front end you are using.



CLICK HERE for a side view of my bike. This is the best I can do to show ground clearance for now.

http://www.thegsresources.com/_forum/viewtopic.php?t=5694

This is a link to all the help I received last year when I did my front end.

[Billy Ricks]

Don't get too concerned over ground clearance. Newer forks don't have as much travel as older units because the radial tires do a good job of soaking up the initial jolt from bumps. Set your preload up on the stiff side to prevent bottoming out. 1" of sag works fine on my bike. Sag is the difference between the fork length fully extended versus sitting on the ground with your weight in the seat. Only very harsh bumps under hard braking cause my header to touch the ground.