It does not matter if the frame design as is now is able to handle hard riding. Because I'm pretty sure the bike can handle a lot of stress as is now. Important is the fact that will this bike whistand the fatigue loads of hard riding that this bike could be sustained to through its "new" life and not being a time bomb? That's the real questionBigsherm said:Just post a picture of the bike getting its tits ridden off, and that'll settle it.
-Sherm
barreto said:At the swingarm pivot, they are welded and will have an additional gussets placed between the vertical tube and the horizontal tube under the engine. The rearset brackets are laser cut 3/16" plate, which will add some strength to that triangle around the swing arm pivot. Directly above the upper rearset stud, there is a cross tube connecting the two vertical tubes, which I could also gusset if it looks necessary.
I'm not trying to be argumentative, but I am doing a thorough job at adding strength to new geometry.
you are doing a fantastic job on the fabrication, some tapering gussets at the top tube connection to the backbone would really help and you have the skills to pull that of beautifully as wellbarreto said:At the swingarm pivot, they are welded and will have an additional gussets placed between the vertical tube and the horizontal tube under the engine. The rearset brackets are laser cut 3/16" plate, which will add some strength to that triangle around the swing arm pivot. Directly above the upper rearset stud, there is a cross tube connecting the two vertical tubes, which I could also gusset if it looks necessary.
I'm not trying to be argumentative, but I am doing a thorough job at adding strength to new geometry.
JensLP said:What forks are those? They look brutal!
focusinprogress said:out of curiosity, what did you end up with trail-wise swapping the front end? I'm working out something similar with GSXR750 parts and with stock GSXR triple trees the trail was 6.25" (eek!) I did happen to notice your xs850 started out with non-leading axle forks but my xs750 had leading axle forks. Makes me wonder if the neck angle on the frame was different for the non-leading-axle versions. I'm making custom triple trees from scratch with more offset to bring the trail closer to 4.25-4.5" for mine....and made up some rotor adapters to use RC51 rotors on stock wheels.
hbc said:Thanks for posting the update on the frame Luke.
I don't know the answer to this exactly... but I can tell you that on the 850 it is pretty close to stock because, as you mentioned, the 750 has the leading axel which the 850 does not.
And nice work on that adapter to run the stock wheel with those calipers! Looks great.
focusinprogress said:Thanks for the kind words! many hours on the lathe lol. I have two xs850's as well that both have the leading axle forks too....I think the difference is "standard" versus "special" models....the standards seem to have the knee-dent style tank and non-leading axle forks, while the "special" has a more tear-drop style tank and leading axle forks.
xb33bsa said:the frame strengthening looks real good
barreto said:I'm framing that quote on my wall, just so you know