860 GT Rear Hub > 750 GT?

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geodoc
750 GT
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860 GT Rear Hub > 750 GT?

Post by geodoc » Sun Nov 24, 2013 9:41 am

The brake drum on the 750 GT I'm restoring is deeply grooved, deep enough that it can't be machined flat. An 860 GT hub / drum came up on eBay with what appears to be a smooth drum surface.

Question is, is an 860 GT rear hub the same or interchangeable with a 750 GT hub?

Somebody know?

George
Vancouver BC

baddean
Parallel Twin
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Joined: Sun Jun 17, 2007 6:11 pm
Location: Cincinnati Ohio

Re: 860 GT Rear Hub > 750 GT?

Post by baddean » Wed Nov 27, 2013 10:19 am

George,
Yes they are the same for the drum brake models.
750GT and 860GT part numbers are the same. (0795.80.453 bare hub with bearings)

Dean
Faster, faster until the thrill of speed overcomes the fear of death.
Hunter S Thompson RIP

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geodoc
750 GT
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Re: 860 GT Rear Hub > 750 GT?

Post by geodoc » Wed Nov 27, 2013 1:06 pm

Heh Dean,

Yeah, pondering whether to just skim the surface after lacing it up and maybe live with a few very shallow grooves. Being a rear brake, I'm too, too concerned. Trying to avoid "picking fly s**t out of the pepper" with things. It's easy to do. Still, good to know and thanks.

GD
baddean wrote:George,
Yes they are the same for the drum brake models.
750GT and 860GT part numbers are the same. (0795.80.453 bare hub with bearings)

Dean
Last edited by geodoc on Wed Nov 27, 2013 5:56 pm, edited 1 time in total.

baddean
Parallel Twin
Posts: 144
Joined: Sun Jun 17, 2007 6:11 pm
Location: Cincinnati Ohio

Re: 860 GT Rear Hub > 750 GT?

Post by baddean » Wed Nov 27, 2013 1:23 pm

George,
If it were a front (drum) brake I might be more concerned about the grooves. Being a rear brake, at least in my case, it wouldn't get used as much as the front so I wouldn't be concerned about cleaning it up and using it.
Your call, but if the grooving is shallow the brake shoes will bed in either way once it's cleaned up.
Dean
Faster, faster until the thrill of speed overcomes the fear of death.
Hunter S Thompson RIP

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