Author Topic: 75 cb750f wheel on gl100 forks???  (Read 2106 times)

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Offline fdbrat

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75 cb750f wheel on gl100 forks???
« on: December 07, 2013, 10:42:24 am »
Just like the tittle says. Can I use 75 cb750f wheel on the 77 gl1000 forks?
Will the twin rotors fit on the 750f's hub?

I know a hub swap is possible but I am running Lester mags.

The brakes are frozen on my 750, and I have a chance to grab a whole 77 gl1000 for cheap.
« Last Edit: December 07, 2013, 10:44:01 am by fdbrat »
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline 754

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Re: 75 cb750f wheel on gl100 forks???
« Reply #1 on: December 07, 2013, 12:17:45 pm »
Rotor sizes Are. Different
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Lost quite a few CB 750's along the way

Offline fdbrat

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Re: 75 cb750f wheel on gl100 forks???
« Reply #2 on: December 07, 2013, 12:53:56 pm »
So The wheel will fit. But the gl rotor won't button up to the 750 wheel?

Drill the rotor? Sigh...

I need breaks and figured if this all worked I'd get an upgrade too. Hmmm. I really dig my mags.

Other wise the hunt for stock brakes.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline Xnavylfr

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Re: 75 cb750f wheel on gl100 forks???
« Reply #3 on: December 07, 2013, 04:41:33 pm »
I also think the GL rotors are offset more than the CBs. The GL forks are about 2" wider. I think the GL and CB rotors were drilled the same to mount on the rim but different offset!


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Offline dusterdude

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Re: 75 cb750f wheel on gl100 forks???
« Reply #4 on: December 07, 2013, 05:04:33 pm »
And you are correct


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1972 k1 750
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1 1/2 gl1100 goldwings
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Offline fdbrat

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Re: 75 cb750f wheel on gl100 forks???
« Reply #5 on: December 07, 2013, 08:16:02 pm »
Would it bee to sketchy to add longer bolts and spacers on the rotor?

Bummer.

I mean... $100 for a complete GL1000 is a great deal.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline Bankerdanny

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Re: 75 cb750f wheel on gl100 forks???
« Reply #6 on: December 08, 2013, 11:57:02 am »
I'm not sure why you would want to use the F wheel anyway. The '75 F would be a single front disk with a steel rim and the '77 GL1000 is a double disk aluminum wheel.  The 750F didn't get twin front disks until the switch to Comstar wheels in '77.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline Xnavylfr

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Re: 75 cb750f wheel on gl100 forks???
« Reply #7 on: December 08, 2013, 04:24:14 pm »
I know the 75/76 GLs had aluminum D.I.D. rims.and can polish up very nice!! You could swap rims out so they both match!!



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Offline fdbrat

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Re: 75 cb750f wheel on gl100 forks???
« Reply #8 on: December 08, 2013, 05:28:02 pm »
If I didn't have these Lester's I would use the GL rims. I like the low maintenance of these mags.

Basically I need to replace all the brakes. Complate fusion.  FUBAR.

I "Had" a chance to grab a complete GL.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline Bankerdanny

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Re: 75 cb750f wheel on gl100 forks???
« Reply #9 on: December 08, 2013, 06:13:29 pm »
Ah, that would make sense. You didn't mention the Lesters, which I believe support 2 disks, and if they don't Goldwing Lesters will.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline fdbrat

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Re: 75 cb750f wheel on gl100 forks???
« Reply #10 on: December 08, 2013, 06:21:30 pm »
That's a great idea Danny. I hope the GL Lester's are the same style.
I keep my eye open for a front one. I suppose until then ill just go stock until I find the right buy.

Thanx fellas.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline seanbarney41

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Re: 75 cb750f wheel on gl100 forks???
« Reply #11 on: December 08, 2013, 06:24:23 pm »
I'm not sure about the '75-'76 f bike hubs, but I know early 750k(71-76) and gl1000 hubs are identical.  Just bolt the rotors, speedo drive and axle (and spacer/s?) from the gl on to your lester and it drops right into the gl1000 forks perfectly.  Not sure why someone has not pointed this out already.
If it works good, it looks good...

Offline fdbrat

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Re: 75 cb750f wheel on gl100 forks???
« Reply #12 on: December 08, 2013, 06:45:26 pm »
Ok cool. I did ask about a rotor spacer earlier. No response. Thanx sean. Man... I should of just grabbed the bike. Damn. Well. The hunt begins.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline Bankerdanny

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Re: 75 cb750f wheel on gl100 forks???
« Reply #13 on: December 11, 2013, 12:21:27 pm »
Here you go, someone in the for sale thread selling GL1000 Lesters. Maybe he would trade the 750 Lester for the GL, although I think the CB version is worth more.

http://forums.sohc4.net/index.php?topic=132538.0
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200