Author Topic: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?  (Read 10080 times)

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Offline thrutheframe

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I cut the same center tubes  from a wrecked F model and welded it into a K0. That tells me any sohc 750 frame has the correct center section. I even moved the triangle brace because it was gone too. Go for it.

He had the center section just as it fell out whe he cut it. 
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline ekpent

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The seat that the gas tank is sitting on is/was a stock 71 seat. Did you find a plastic chain guard yet,if so that's good stuff.

Offline thrutheframe

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No plastic chain guard sorry.
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline myhondas

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I have an original k4 chain guard. When I looked it up in the parts fiche and it has the same part # as the K2.  Send me PM if you are interested in it.
1974 CB 750 K4 SHOWROOM
1974 CB 750 K4 IN PART-OUT PROCESS (my original bike)
1965 C100 CUB 50 (PIT BIKE)
1996 VF 750 CD daily rider
1983 VF 1100 V65 Magna in restoration process
SOHC# 5105 11228

Offline thrutheframe

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72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #29 on: March 06, 2012, 06:30:22 AM »
I think this is going to be a hard tail.  The title that came with the pile is for a frame that has been cut but never completed.  I'm going to post some pics of the frame later today.  I've been looking at chopper and bobber hard tail frames and I think it's cut right but I've never modified a bike frame.
« Last Edit: March 06, 2012, 04:45:48 PM by thrutheframe »
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline thrutheframe

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72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #30 on: March 06, 2012, 09:28:24 AM »
Not sure about those welds. Is this useable as a hard tail?
« Last Edit: March 06, 2012, 04:46:37 PM by thrutheframe »
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline thrutheframe

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72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #31 on: March 13, 2012, 07:47:26 AM »
Here's a simple sketch of what I have in mind.  I'm going to call it the Hippy Killer.  No frills, straight seat, 16" rear wheel, 19" front, cycle-x oil tank, stock rake, drag bars with a small riser, orange frame, stock orange tank, orange fenders, 70's style pin stripe "hippy killer" on the tank.  Motor details to follow ...
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline Xnavylfr

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Re: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #32 on: March 13, 2012, 09:39:24 AM »
That frame HAS been cut at the wrong place for any of the weld on hardtails you may see on E-BAY but you can rebuild it. It looks to me they were in the process of doing what we in the chopper world calls a KONG job= lowering of the seat rails in the back.
http://s465.photobucket.com/albums/rr20/Xnavylfr/

check picture #6

If you are going to hardtail it I would suggest you join at
www.hondachopper.com
More chopper/bobber friendly site and LOTS of people there to steer you in the right directions.

Xnavylfr(CHUCK)

Offline HondaMan

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Re: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #33 on: March 13, 2012, 10:16:53 AM »
That is a K1 tank in the pic, I bet..faded Candy Garnet Brown..
 My eyesalook better now and the kids are gertting over me blinding Ted E. bear, and parting him out...
My K2 came in (soon faded!) Candy Garnet Brown, as did early K3 bikes. Honda couldn't give the color away, probably kept putting it on bikes that were available.
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

Link to website: www.SOHC4shop.com

Offline scottly

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Re: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #34 on: March 13, 2012, 09:08:18 PM »
If I were you, I would use the back part of the gold frame to replace/repair the mutilated frame with a title.... Just my opinion. ;)
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline thrutheframe

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72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #35 on: March 13, 2012, 09:09:48 PM »
That frame HAS been cut at the wrong place for any of the weld on hardtails you may see on E-BAY but you can rebuild it. It looks to me they were in the process of doing what we in the chopper world calls a KONG job= lowering of the seat rails in the back.
http://s465.photobucket.com/albums/rr20/Xnavylfr/

check picture #6

If you are going to hardtail it I would suggest you join at
www.hondachopper.com
More chopper/bobber friendly site and LOTS of people there to steer you in the right directions.

Xnavylfr(CHUCK)

Thanks Chuck.  My buddy actually called this a Kong frame and I didn't get it.  I'm going for a different look but its nice to know what the original plan may have been.
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline thrutheframe

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72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #36 on: March 13, 2012, 09:29:23 PM »
If I were you, I would use the back part of the gold frame to replace/repair the mutilated frame with a title.... Just my opinion. ;)
Fair enough, you're not the first to say that. 

*edit*
The consensus with people who don't want to see me make a hard tail is that I should remove the the steering stem and put it on the yellow frame.  I still have a hardtail bar hopping hippy killer in my head.
« Last Edit: March 14, 2012, 06:18:32 AM by thrutheframe »
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline nayto550

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Re: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #37 on: March 14, 2012, 03:19:50 PM »
As far as being usable, yes it would be usable for a hardtail.

Here's the weld-on I got from www.cycleonemanufacturing.com/:



And here it is with the frame after cutting:

« Last Edit: March 14, 2012, 03:22:11 PM by nayto550 »
1976 CB550F
1976 CB750F - in resurrection process
1988 HD FLHS

Offline Xnavylfr

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Re: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #38 on: March 14, 2012, 03:42:47 PM »
Cycle One does some great work!! They also sell complete frames for most all M/Cs  with your specs when built.

www.cycleonemanufacturing.com

Xnavylfr(CHUCK)

Offline thrutheframe

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72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #39 on: March 15, 2012, 01:30:10 PM »
I see it in there somewhere.
'74 cb 750 K4
'79 CB 650 http://forums.sohc4.net/index.php?topic=83981.0
'75 CB 360T
'90 RC31 Hawk GT

Offline EvLoutonian

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Re: 72 CB750 K2 titled frame. Is this thing useable as a hard tail frame?
« Reply #40 on: November 20, 2018, 08:40:58 PM »
I see it in there somewhere.


Heya,
Did you get this bike built in the end?

Keen to see how it ended up.

Cheers!