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frame rake
- jordan
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16 May 2008 10:45 #214033
by jordan
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold
1972 Kawasaki s2 350-parted on ebay
1973 Kawasaki s2 350-parted on ebay
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
frame rake was created by jordan
Alright, I know alot of you on this forum are not fond of kz choppers(not sure if i am either, but what better can you do with a already hacked frame) but try to help me out here and give your opinions. I have come across a problem that I knew wasnt going to be easy to fix. I finished the hardtail frame section, and I welded it up so that the bike would sit LOW!!! It sits about 2-3 inches from the ground. the stance looks sweet, but the front end presents us with a problem. To level out the front with the rear I had to bring the forks up about 4 inches in the triple trees. This not only looks stupid, but it leaves us with about 0 fork travel and no room to mount the exhaust. This makes me believe that raking the front out is necessary. I found on the net once a how to on raking your own forks. As long as you keep it straight, you could cut up from the neck until the weight of the bike began bending (raking) the front outwards. When the rake was right you just re'welded and braced everything back up. Does this sound safe? DO you have any other ideas on raking?
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold
1972 Kawasaki s2 350-parted on ebay
1973 Kawasaki s2 350-parted on ebay
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
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- mjg15
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16 May 2008 10:49 #214035
by mjg15
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550
Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg
Replied by mjg15 on topic frame rake
Here's a link to a frame geometry calculator .
www.rbracing-rsr.com/advchoppercalc.html
www.rbracing-rsr.com/advchoppercalc.html
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550
Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg
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- jordan
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16 May 2008 14:01 #214069
by jordan
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold
1972 Kawasaki s2 350-parted on ebay
1973 Kawasaki s2 350-parted on ebay
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
Replied by jordan on topic frame rake
alot of valuable information on that site. Has anybody actually seen it done on a bike like ours?
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold
1972 Kawasaki s2 350-parted on ebay
1973 Kawasaki s2 350-parted on ebay
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
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- 76 LTD
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17 May 2008 16:15 #214219
by 76 LTD
Replied by 76 LTD on topic frame rake
My buddy has a Z1 with raked frame that was done by the local chopper guru and it is as strong or stronger than stock.it was done basically the way you described.
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- Patton
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- KZr Legend
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17 May 2008 19:07 #214238
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic frame rake
Might be of interest --
Forking By Frank
If not already aware, as the forks move closer to being parallel with the road surface (front wheel situated out further and further in front of bike), the slider action and any damping effects progressively diminish, until the front suspension acts like it's just two long fork tubes sticking out there without any sliders.
This is one reason (besides appearance) why springer or girder style extended front ends are fitted in lieu of longer fork tubes.
As known, when lowering the front end, keep an eye out for any clearance issues such as header-to-road, cornering, and during maximum front braking. And of course the different handling characteristics.
Good Luck!
Forking By Frank
If not already aware, as the forks move closer to being parallel with the road surface (front wheel situated out further and further in front of bike), the slider action and any damping effects progressively diminish, until the front suspension acts like it's just two long fork tubes sticking out there without any sliders.
This is one reason (besides appearance) why springer or girder style extended front ends are fitted in lieu of longer fork tubes.
As known, when lowering the front end, keep an eye out for any clearance issues such as header-to-road, cornering, and during maximum front braking. And of course the different handling characteristics.
Good Luck!
1973 Z1
KZ900 LTD
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- jordan
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17 May 2008 20:52 #214256
by jordan
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold
1972 Kawasaki s2 350-parted on ebay
1973 Kawasaki s2 350-parted on ebay
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
Replied by jordan on topic frame rake
thanks alot for all of this helpful information. I have to find a way to have the exhaust come out either the left side, right side, or both instead of going under the frame to save on clearance. I am a little worried about the frame dragging under hard braking.
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold
1972 Kawasaki s2 350-parted on ebay
1973 Kawasaki s2 350-parted on ebay
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
Please Log in or Create an account to join the conversation.