Frame bracing

Orgoth225 · 12-21-2012, 01:17 PM

Well I think I know how to get my hack project off the ground, I think I might just end up using my kz400 and I'm thinking before I even want to think about a proper sub-frame that I should reinforce the bike first. That or I should look for a more proper bike to use. What do you guys think?

Bobmws · 12-22-2012, 05:20 AM

Not familiar with the KZ400, but isn't that what a subframe is supposed to do? Quite sure extra bracing would help, but I'd have the subframe on had to make sure you don't block any attachment points.

davet2 · 12-22-2012, 06:10 AM

There are some photos of an old Suzuki GS400 on page 305 of the "Sidecars- Lets see em" thread. I know its not the same bike, but probably pretty similar frame construction to your KZ400. You might ask that guy what he has for a subframe, I can't really tell from the pictures. Good luck with the project.

team sleaz · 12-23-2012, 04:47 PM

HI Dave, This bike would have a full duplex frame I recon, so attach it to the frame,I only use subframes on bikes without full frames. Keeps it simpler.This wont be no powerhouse so keep the chair a resonable size. Regearing , stiffer suspension both ends, and later a set of leading axle forks. Perhaps some crossbracing under seat area. If the exhaust is in the way change it etc etc. when I sidecar a bike it stays that way ! so I design suitable lugs/brackets and weld them to the frame and bolt the sidecar struts to them. Use at least 4 or more (better).Good Luck.

Orgoth225 · 12-28-2012, 08:39 PM

Sorry for the late reply, christmas and everything. Thanks for the reply though, now only to install a 440 engine for the extra hp and I think I have a decent plan

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12-21-2012, 01:17 PM	#1
Orgoth225 ^OP Adventurer Joined: Apr 2012 Location: Cleveland Ohio Oddometer: 19	Frame bracing Well I think I know how to get my hack project off the ground, I think I might just end up using my kz400 and I'm thinking before I even want to think about a proper sub-frame that I should reinforce the bike first. That or I should look for a more proper bike to use. What do you guys think?

12-22-2012, 05:20 AM	#2
Bobmws Curmudgeon At Large Joined: Jun 2005 Location: Astatula, FL Oddometer: 700	Not familiar with the KZ400, but isn't that what a subframe is supposed to do? Quite sure extra bracing would help, but I'd have the subframe on had to make sure you don't block any attachment points. __________________ Bob Weis 04 K12RS - Hannigan Hack You rarely see a motorcycle parked outside a psychiatrist's office. Photo's: http://s1077.photobucket.com/albums/w464/Bobmws/ www.earplugco.com

12-23-2012, 04:47 PM	#4
team sleaz n00b Joined: Nov 2012 Location: south australia Oddometer: 4	Kz400 frame HI Dave, This bike would have a full duplex frame I recon, so attach it to the frame,I only use subframes on bikes without full frames. Keeps it simpler.This wont be no powerhouse so keep the chair a resonable size. Regearing , stiffer suspension both ends, and later a set of leading axle forks. Perhaps some crossbracing under seat area. If the exhaust is in the way change it etc etc. when I sidecar a bike it stays that way ! so I design suitable lugs/brackets and weld them to the frame and bolt the sidecar struts to them. Use at least 4 or more (better).Good Luck.

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12-22-2012, 06:10 AM	#3
davet2 Adventurer Joined: May 2010 Location: Rochester, MI Oddometer: 88	There are some photos of an old Suzuki GS400 on page 305 of the "Sidecars- Lets see em" thread. I know its not the same bike, but probably pretty similar frame construction to your KZ400. You might ask that guy what he has for a subframe, I can't really tell from the pictures. Good luck with the project.

12-28-2012, 08:39 PM	#5
Orgoth225 ^OP Adventurer Joined: Apr 2012 Location: Cleveland Ohio Oddometer: 19	Sorry for the late reply, christmas and everything. Thanks for the reply though, now only to install a 440 engine for the extra hp and I think I have a decent plan .