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71 forks to work on 65 frame? #45224
12/21/05 5:03 am
12/21/05 5:03 am
Joined: Oct 2005
Posts: 61
Clayton
O
odl777 Offline OP
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odl777  Offline OP
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Joined: Oct 2005
Posts: 61
Clayton
What can i do to get my 71 oif forks to work on my 65 or 67 bsa frame. any sugesstions thanks

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Re: 71 forks to work on 65 frame? #45225
12/22/05 1:28 am
12/22/05 1:28 am
Joined: May 2002
Posts: 692
Winston-Salem N.C.
D
D.W.R. Offline
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D.W.R.  Offline
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D
Joined: May 2002
Posts: 692
Winston-Salem N.C.
Unless I'm missing something, I believe you can just slip your 71 legs into your earlier yokes. That's what I'm planing to do on my 66. Didn't use a micrometer or anything high tech, but the width looks the same with my tape measure. Tubes are the same diameter.
Don


71 Rocket 3
72 B50 MX
66-71 A 65 Bitsa
96 Trident 900
Re: 71 forks to work on 65 frame? #45226
12/22/05 4:10 pm
12/22/05 4:10 pm
Joined: Jan 2003
Posts: 523
San Diego, CA
Will S. Offline
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Will S.  Offline
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Posts: 523
San Diego, CA
I don't think that would work w/o mods, the pre OIF fork tubes have a taper at the top to snug into the top tripleclamp, while the OIF fork tubes are not tapered and held in place by a clamping action.


Will S.
BSAs: '66 & '69 Lightning
Triumphs: '68 TR6R, '68 Bonneville, '73 TR7, '55 6T
'71 Norton Commando

www.britironsd.com
Re: 71 forks to work on 65 frame? #45227
12/22/05 4:39 pm
12/22/05 4:39 pm
Joined: Aug 2001
Posts: 4,068
argyll. scotland, uk
gavin eisler Offline
BritBike Forum member
gavin eisler  Offline
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Joined: Aug 2001
Posts: 4,068
argyll. scotland, uk
My OIF forks have a taper at the top.
Should fit, but they will probably be too long , unless you like a chopper look.
Cheers
pod


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: 71 forks to work on 65 frame? #45228
12/22/05 8:50 pm
12/22/05 8:50 pm
Joined: May 2002
Posts: 692
Winston-Salem N.C.
D
D.W.R. Offline
BritBike Forum member
D.W.R.  Offline
BritBike Forum member
D
Joined: May 2002
Posts: 692
Winston-Salem N.C.
Will/pod
It depends on the year of the OIF forks as to the top taper/ or clamp. The 71/72 had the taper, later ones like the T140 with a disc had the pinch bolts in the upper clamp. I plan on useing the stock tubes/lowers/wheel from my 71 Rocket 3 on a 66 Spitfire and everything measures out the same. As the R3 is getting a T140 disc front, I've looked all these pieces over pretty closely (yes I have the correct T150 lower yolk). The later disc fronts were held differently at the top and the spread was wider. Before anyone jumps, yes I'll have to use twin springs and dampers in the Spitfire as these differ from the triple parts.
Don


71 Rocket 3
72 B50 MX
66-71 A 65 Bitsa
96 Trident 900

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