Author Topic: Aftermarket Frames For 1975 Yamahas  (Read 2062 times)

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Offline Tahitian_Red

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Aftermarket Frames For 1975 Yamahas
« on: July 17, 2012, 05:10:01 am »
Did Red Line or Pro-Fab make an aftermarket frame for the early mono-shockers?
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'74 Suzuki TM100, '75 Bultaco 250 Pursang, '77 Honda XR75, '77 Suzuki RM125B, '77 Yamaha YZ400D, '79 Honda CR250RZ Moto-X Fox Replica, '83 Honda ME480RD Mugen

Offline steveo247

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #1 on: July 21, 2012, 09:34:21 pm »
Ive never seen or heard of one

Offline Davey Crocket

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #2 on: July 22, 2012, 07:27:13 pm »
I think pro-fab did.....but for the works "OW's" only....I think theres a blurb on Terry Goods site "MXworksbikes".... look up OW13....basically the std frames where breaking at the headstock. A guy in NZ that I know raced  YZ250/360B's for Tim Gibbes said even the production ones broke as the tracks got rougher....he said we always had a welder at the track to repair the frames.
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Offline firko

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #3 on: July 22, 2012, 09:12:19 pm »
I guess my Trackmaster motocross frame to suit the Yamaha YZ125 X/C might fit the bill. It takes the dodgy period monoshock out of the equation, replacing it with a good honest twin shock set up. ;D If anyone did make an aftermarket frame for the mid seventies YZ's it'll be sure to be an American, I vaguely recall  seeing a Pro-Fab or C&J (or perhaps both) monoshock frame.


'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #4 on: July 22, 2012, 09:31:54 pm »
DG did frames for the 125's

http://www.vintagefactory.com/New%20Index.htm look in the vintage tests section

Offline steveo247

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #5 on: July 23, 2012, 06:08:35 am »
DG did frames for the 125's

http://www.vintagefactory.com/New%20Index.htm look in the vintage tests section

Nice!
But they dont list it in any of their catalogs, so i recken it might have been a sponsored rider only thing

Offline Iain Cameron

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #6 on: July 24, 2012, 08:42:44 pm »
No the DG frames where for sale . I have a DG 75 and 76 catalogue some where
Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

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Re: Aftermarket Frames For 1975 Yamahas
« Reply #7 on: July 24, 2012, 08:46:25 pm »
Keep scrolling  down Steve, I think there's 2 dg articles.