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Post by slim on Mar 27, 2015 22:24:04 GMT
Hey arnout I agree with a lot of what you say above but you are making an assumption of your own My comments are based on experience of doing the job in question 15 times to date & feedback from the people I have done it for as well as my own experience of riding my braced & unbraced bikes for 1000's of miles I have also cut a gs frame to bits & tested various parts in an attempt to find the weak spots, the area covered by the C brace is the weakest part that matters by far due to it being a fairly long unsupported single tube on each side, although the bend does help strength ..... whoever did the original diagram I posted above got it spot on
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Post by arnout on Apr 2, 2015 19:14:31 GMT
Hey arnout I agree with a lot of what you say above but you are making an assumption of your own My comments are based on experience of doing the job in question 15 times to date & feedback from the people I have done it for as well as my own experience of riding my braced & unbraced bikes for 1000's of miles I have also cut a gs frame to bits & tested various parts in an attempt to find the weak spots, the area covered by the C brace is the weakest part that matters by far due to it being a fairly long unsupported single tube on each side, although the bend does help strength ..... whoever did the original diagram I posted above got it spot on Oops.. Still needed to respond to this topic.. Well.. As for 15 happy customers, I can argue with that (science isn't democratic) but I won't.. However, testing and trial&error is indeed the right way to find out what works.. And yes, the "C-spot" is indeed one of the weakest areas.. in the longitudinal plane! Laterally it isn't that bad at all though.. My point is that you do not absolutely need the C-bracing if you put enough bracing in other areas (esp. B).. My experience with bracing my new Katana frame (no C-brace, lots of other bracing) is that it works.. The bike feels absolutely rigid (despite the supply suspension).. Comparing this frame bracing with the one on my EFE (no F-brace) and that on my older Kat (F-brace) also confirmed my suspicion that the F-brace along with improving the front engine mounts(!) is very effective.. (It ads feel and precision the steering..) Overall I suspect lateral bracing is more useful than bracing in the longitudinal plane.. But.. Yes, these are my assumptions&experiences alone and it is perfectly okay if yours are different and work for you.. Oh the nice diagram is made by mr.7/11 btw..
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Post by slim on Apr 3, 2015 14:22:39 GMT
No worries arnout I am all for pushing the limits a little & its good to compare idea's & results Just my opinion but some people seem to like a really stiff frame that gives lots of feedback while others like a looser feel I guess this is down to riding style & experience, the same applies to suspension setup imo, one of the fastest guys I know sets the rear of his bikes up really soft & it feels like a pogo stick to me When all is said & done whatever works for you or me works & that's good enough
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Post by arnout on Apr 4, 2015 19:31:51 GMT
No worries arnout I am all for pushing the limits a little & its good to compare idea's & results .. Coolio.. ..I have the swingarm pivot sorted. .. Those are pretty nice looking beads, although a bit wide perhaps.. Done with a stick welder I presume? Also are those pivots constructed as box sections or are they single thick plates? (Can't tell for sure from looking at the pictures..) In case of the latter that would explain the beads as you'd need quite a bit of heat.. What about a picture too of the hidden "C-brace"?
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gsryder
Velociraptor
Posts: 34
Reg: Aug 22, 2013 18:31:24 GMT
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Post by gsryder on Apr 5, 2015 17:34:29 GMT
Obviously still not done yet still working on some fitment issues. But when all done I will close up the gaps either with plate or weld. And yes the pivots had to be plates because of the way the pivot hardware is. But I plug welded them and also went around and then they are welded on both sides of the frame.
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gsryder
Velociraptor
Posts: 34
Reg: Aug 22, 2013 18:31:24 GMT
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Post by gsryder on Apr 5, 2015 17:35:22 GMT
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dc98
Oviraptor
Posts: 9
Bikes: Gsxr50, gsxr750 x 2, zx7r and gsx1100et
Reg: Jan 24, 2015 20:40:31 GMT
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Post by dc98 on Apr 5, 2015 18:10:26 GMT
Is that a TLR swingarm? looks really nice
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gsryder
Velociraptor
Posts: 34
Reg: Aug 22, 2013 18:31:24 GMT
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Post by gsryder on Apr 6, 2015 10:39:14 GMT
Thank you. Yes, I believe it was a 99 or 00. I wanted something that was going to be stiffer, I am focusing a little more on suspension and brakes this time around. With 3 years of "R&D" saddle time there were a few little things that I wanted to do differently this time around....basically just lack of experience and knowledge decisions the first time around. It was still a super fun bike to ride and hands down my personal favorite of anything that I have ever ridden.
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coombehouse
Velociraptor
Posts: 34
Reg: May 1, 2013 22:54:41 GMT
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Post by coombehouse on Apr 10, 2015 23:25:23 GMT
Bit late for suggestions now I guess but had you ever considered beefing up the plenum & mounting it as a structural element? Like some motogp bike airboxes? And on aeroplane structures? Just a thought I have been considering for some time. Nick
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gsryder
Velociraptor
Posts: 34
Reg: Aug 22, 2013 18:31:24 GMT
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Post by gsryder on Apr 12, 2015 1:22:31 GMT
No i had not!! But i will say with a litle thought and planning that would have been genious! Where you 3 years ago??!....lol! I may still look into that or at least mechanically fastening it structurally
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Post by katana on Apr 12, 2015 12:35:54 GMT
Check out the plenum on Guy Martins Turbo's Martec GSXR - same principle, if it has to be there, make it do two jobs!
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