Author Topic: Alternative frame for the CB500/550?  (Read 1546 times)

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Offline Scott S

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Alternative frame for the CB500/550?
« on: June 19, 2013, 01:59:40 PM »
 Search turned up nada.

 Has anyone ever squeezed the CB500/550 engine into a different frame? Something lighter/newer/stronger....any of the above?

 I find myself with a pile of spares again and was just wondering if there was an alternative frame to use?
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline lucky

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Re: Alternative frame for the CB500/550?
« Reply #1 on: June 19, 2013, 03:23:21 PM »
Search turned up nada.

 Has anyone ever squeezed the CB500/550 engine into a different frame? Something lighter/newer/stronger....any of the above?

 I find myself with a pile of spares again and was just wondering if there was an alternative frame to use?

Of course the search turned up nothing.
These bikes were made before the internet existed.

1.You can custom build a frame.
2.You can have a custom frame built.

Those are your choices.

Offline kghost

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Re: Alternative frame for the CB500/550?
« Reply #2 on: June 19, 2013, 03:36:24 PM »
Call spondon. Lol

Something in the back of my head says Martin in France perhaps?

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Online jaguar

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Re: Alternative frame for the CB500/550?
« Reply #3 on: June 19, 2013, 03:46:46 PM »
Amen made a frame


Offline Scott S

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Re: Alternative frame for the CB500/550?
« Reply #4 on: June 19, 2013, 04:00:05 PM »
 Lucky, so helpful, as always.....  ::)

 Not looking for a chopper/bobber frame. Thinking street bike.
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline bwaller

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Re: Alternative frame for the CB500/550?
« Reply #5 on: June 19, 2013, 04:11:31 PM »
Scott, a frame maker up this way Denis Curtis has made frames for these and would dearly like to make one for me! When last we spoke he had one in inventory. They do awesome work, tell him I sent you.
 
curtisracingframes.com

Offline Muckinfuss

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Re: Alternative frame for the CB500/550?
« Reply #6 on: June 20, 2013, 11:05:59 AM »
I have an extra cb550 frame that I was going to throw up on E-Bay.   It's from a 77 'F'.  No title for it. Some state will title a bill of sale with a stolen vehicle report showing the numbers are clean and some won't......it you're interested.
1984 Sportster 1000cc XL
1988 Heritage Softail
1974 CB550
1989 Corvette

Offline Scott S

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Re: Alternative frame for the CB500/550?
« Reply #7 on: June 20, 2013, 11:57:10 AM »
 Bwaller, dropped them an email out of curiosity. Really great looking stuff, but looks expen$ive!

 Muckinfuss, thanks, but I'm in SC. They're funny about the title, though they do have some new forms on  the DMV site I may have to try out one day. There's a guy about 30 mins. from me that's offered a non-title frame for free as well. May go pick it up just to have. May just sit on this stuff until I stumble across something with a title.
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline Muckinfuss

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Re: Alternative frame for the CB500/550?
« Reply #8 on: June 20, 2013, 12:12:19 PM »
Understood.  I figured someone with a titled wreck would stamp a new VIN label from the wreck and re-pin it to the replacement.  The only easy way I know to put a frame on the road unless you live in Vermont.
1984 Sportster 1000cc XL
1988 Heritage Softail
1974 CB550
1989 Corvette

Offline turboguzzi

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Re: Alternative frame for the CB500/550?
« Reply #9 on: June 20, 2013, 12:44:18 PM »
Although the 500/4 has no famous frame like the drixtons for the 450 twin, there were quite  a few made for the little sohc

Martin
Davies Motorsports cro-mo replicas frames
Rob north
Egli
nico bakker
Paton (white bike of my friend Lucio)

not that you have much chances of finding any of those on ebay....
question is, why do you want one? the original 500/4 is pretty good, has pretty steep rake, lots of weight on the front end (good) and you'd have to be running at the sharp end of classic racing to reach it's limits. brace it a bit, set it up with good suspension and its a VERY capable frame.
i raced one for four seasons and cant say i ever reached its limits
« Last Edit: June 20, 2013, 12:47:35 PM by turboguzzi »

Offline Scott S

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Re: Alternative frame for the CB500/550?
« Reply #10 on: June 20, 2013, 01:16:41 PM »
 I wasn't necessarily looking for a famous vintage frame or a race frame. I was asking more along the lines of what else can I fit the 550 engine into?

 I have spares from my other projects. Lots of spares. I have no problem with a stock frame. I was just wondering if someone had swapped the engine into something else.
 I have a buddy who bought a blown up Ninja 250 for peanuts. He swapped in an RD350 engine. The bike looked stock (complete with the white paint with turquoise and pink graphics!) but sounded like an angry hornet when he pulled up. Relatively modern frame/suspension/brakes with a screaming 2-stroke power plant hidden behind the fairings.

 That's kind of what I meant. Maybe someone has dropped the 500/550 lump into.....something?
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline crazypj

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Re: Alternative frame for the CB500/550?
« Reply #11 on: June 20, 2013, 01:22:28 PM »
Pretty sure Dresda made a frame for 500f, going to be rare though, I've only ever seen one and that was around 1978
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