Rear wheel drives

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BiKenG
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Rear wheel drives

#1

Post by BiKenG »

Well, rear wheels AND Final DRIVE Units to be precise as I'm pondering the possibility, simple or otherwise of putting GL1200 cast wheels into a GL1100.

Unless I'm very much mistaken (hard to know when Honda's parts lists are inaccurate), the GL1000 and 1100 both used a male spline on the pumpkin/FDU with a matching female spline on the wheel driven flange. However, the GL1200 reversed this with a male spline on the wheel and female on the FDU. Please correct me if I'm wrong.

If I'm right, then the 1200 wheel won't simply fit in the 1100. But is it possible to fit the female driven flange from an 1100 onto the 1200 wheel and if so, will it then fit right onto the FDU and line up where it should?

I'm pretty determined to do this, so I'm really looking into what I will need to do in order to effect the swap, rather than advice on whether or not I should even attempt it.
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flyin900
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Re: Rear wheel drives

#2

Post by flyin900 »

Can't answer that question, yet the 1983 GL1100 also used the cast wheels like the GL1200 not the Comstars that the earlier GL1100's used from the early 80's. So those maybe a possible option as a direct fit.
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Re: Rear wheel drives

#3

Post by Whiskerfish »

Ken I can not speak for certain but I think you are correct. One is basically male to female and the other is female to male.
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Re: Rear wheel drives

#4

Post by HOTT »

BiKenG wrote: Unless I'm very much mistaken (hard to know when Honda's parts lists are inaccurate), the GL1000 and 1100 both used a male spline on the pumpkin/FDU with a matching female spline on the wheel driven flange.
Just to add a sidebar piece of clarity to 1000 & 1100 swaps. https://www.ngwclub.com/forum/viewtopic ... 00#p515900

flyin900 is correct the '83 turbines work on 1100 finals.. annnd look pretty cool.

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Rednaxs60
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Re: Rear wheel drives

#5

Post by Rednaxs60 »

Here is some more info regarding 1200 wheels: https://goldwingdocs.com/forum/viewtopic.php?t=25817
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BiKenG
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Re: Rear wheel drives

#6

Post by BiKenG »

Looks to me like the following:-

• GL1000 uses a 6 pin female flange
• GL1100 uses a 5 pin female flange
• GL1200 uses a 6 pin male flange of 2 different lengths, but adaptable
• GL1500 88/89 uses a 6 pin male flange
• GL1500 90-> uses a 5 pin male flange

Not sure where that puts me though. I didn't realise there was so much variation in 'Wing wheels.
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Re: Rear wheel drives

#7

Post by BiKenG »

Just looking at those again. Which raises the question in my mind:-

Would a GL1000 6 pin female flange fit on a GL1200 wheel and into the GL1100 Final Drive Unit? Or could they be made to fit and all work together?
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robin1731
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Re: Rear wheel drives

#8

Post by robin1731 »

BiKenG wrote:Just looking at those again. Which raises the question in my mind:-

Would a GL1000 6 pin female flange fit on a GL1200 wheel and into the GL1100 Final Drive Unit? Or could they be made to fit and all work together?
My famous/infamous line, "Anything can be made to fit anything". It just depends on your fabricating skills or how deep your pockets are. ;)

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BiKenG
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Re: Rear wheel drives

#9

Post by BiKenG »

robin1731 wrote: My famous/infamous line, "Anything can be made to fit anything". It just depends on your fabricating skills or how deep your pockets are. ;)
Ha, yes of course. I was just wondering how easy/hard it would be. If the flange spline and drive stud PCD are the same, then I'd be in with a shout, but much harder if not. I think the former is true, but not sure about the latter although I should be able to check both today.

A bit of trimming of the wheel or flange here and there I can do in the lathe, but having to manufacture a completely new flange, while not impossible would make it more trouble than it's worth.

This sort of information is out there, but I'm late to the GL game and trying to catch up. :)
Ken
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Re: Rear wheel drives

#10

Post by BiKenG »

Just offered up a GL1000 flange to a GL1200 wheel and YAY!, it fits. Sort of.

The drive pin PCD is the same on both wheels and although the rubber dampers look different the pins seem to fit in well. But, the flange doesn't drop right down as the pins are too long and if I shorten those, the inner boss of the flange may well contact the wheel castings. But truth is, these are minor and can be fixed. So it definitely does look do-able.

What I've not yet been able to ascertain is the 'depth' of the flange. I need to measure an 1100 wheel for the offset of the flange from the wheel centre and then see if I can get the GL1000 flange to that same depth on the 1200 wheel.

So at some point I'll need to remove the wheel from my GL1100 and do some measuring. But in the meantime, I am now 99% sure it's possible.

I also discovered that the 1200 wheel I have is the later modified one with the steel band around the RH bearing boss of the wheel. I was wondering though, has anyone tried machining the 1200 wheel to accept a double row bearing. If possible that would eliminate the potential wheel problem, but I've no idea if there's enough material to do that. Anyone tried?
Ken
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Whiskerfish
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Re: Rear wheel drives

#11

Post by Whiskerfish »

I do not know about a double row bearing (not sure exactly what you are referring to) but I know a flange (cap and sleeve) bushing has been done. Read about that repair somewhere years ago.
"Agreement is not a requirement for Respect" CDR Michael Smith USN (Ret) 2017
"The book is wrong, this whole Conclusion is Fallacious" River Tam
2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!

Psst. oh and by the way CHANGE YOUR BELTS!!!!
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Rednaxs60
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Re: Rear wheel drives

#12

Post by Rednaxs60 »

"When writing the Story of your life, don't let anyone else hold the pen."

Ernest

1985 GL1200 Limited Edition
2014 Can-Am Spyder RT LE
2021 Royal Enfield Himalayan
1995 GL1500 SE CDN Edition (sold)
2012 Suzuki DL1000 VStrom (sold)
Ontario 1985 GL1200 Limited Edition (sold)
2008 GL1800 (sold)
BiKenG
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Re: Rear wheel drives

#13

Post by BiKenG »

I was thinking that to prevent it from occurring on a wheel that still holds the original (14mm wide) bearing tight, you could just machine a further 6mm down into the wheel bearing support and fit the 20mm wide double row bearing from the 1500. You might even be able to do this on a type 1 wheel if not already ovalized.
Ken
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ericheath
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Re: Rear wheel drives

#14

Post by ericheath »

Bumping this to see how you’re doing with this and because others are asking. x01660
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BiKenG
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Re: Rear wheel drives

#15

Post by BiKenG »

ericheath wrote:Bumping this to see how you’re doing with this and because others are asking. x01660
If the question is aimed at me, nothing. I've been busy with other projects and it'll be some time before I get started in earnest.

I was happy to find that the GL1000 flange will basically fit the 1200 wheel and I'm sure with a little bit of machining I can make it a perfect fit and also use the dual row bearing from the 1500. At that point I moved on to other things till I return for actual serious work on this bike.
Ken
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