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Old 10-28-2012, 05:14 PM   #526
disston
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Location: Silver Spring, Md
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Quote:
Originally Posted by Wdwrkr View Post
Would those bags fit a 73 75/? Would that be bastardizing my girl? Let me know
The /5 bikes are model years 1970 to 1973. They started with what became known as the SWB, Short Wheel Base, models and later the wheel base was lengthened by the extension of several parts of the frame. To begin with the swing arm is longer in a LWB bike, Long Wheel Base. This longer part can sometimes be recognized by welds in the drive shaft tube of the swing arm, but that is not a diffinative touch because the swing arm may be a longer one with out the welds.

Picture stolen from Duane Ausherman.


The sub frame is longer and the seat is longer on a LWB bike.

To make this more confusing there is no cut off or model change date. For a while they made both LWB and SWB bikes. And in the later 70's and 80's it was popular to make a LWB /6 or /7 into a SWB bike by swapping some parts around. You just have to learn how to spot them

How all this effects the luggage is interesting. The bag frames attach to several places. On a LWB bike the frames are different. The bags are the same but not the frames.
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Old 10-28-2012, 05:29 PM   #527
civhatch90
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Looking for fork tubes (do not need the entire front end, just the tubes) for a 1974 R90/6.
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Old 10-28-2012, 05:31 PM   #528
Wirespokes
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Quote:
Originally Posted by disston View Post
On a LWB bike the frames are different. The bags are the same but not the frames.
Really? I thought it was the subframe that was different, but the frames have the same geometry - though there may be differences in construction or tabs etc.
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Old 10-28-2012, 05:35 PM   #529
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Quote:
Originally Posted by Wirespokes View Post
Really? I thought it was the subframe that was different, but the frames have the same geometry - though there may be differences in construction or tabs etc.
You are correct.
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Old 10-28-2012, 06:47 PM   #530
disston
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Quote:
Originally Posted by Wirespokes View Post
Really? I thought it was the subframe that was different, but the frames have the same geometry - though there may be differences in construction or tabs etc.
This paragraph, two sentences, is about the bags. So it says the "bag frames" are different, not the bike frames. I did mention earlier that the "sub frames" are different.

This does get confusing. There is the bike frame, the bike sub frame, the bag frame.

All the bike frames are the same length.

On short or long wheel base bikes the sub frames and the bag frames correspond to the model. Seats also are either SWB or LWB.

Just trying to make it some what clearer but of course any time I do that it gets more confusing.
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Old 10-28-2012, 08:18 PM   #531
Big Bamboo
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Quote:
Originally Posted by civhatch90 View Post
Looking for fork tubes (do not need the entire front end, just the tubes) for a 1974 R90/6.
Google "Forking By Frank" if you're looking for new at a good price.
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Old 10-28-2012, 09:45 PM   #532
bmweuro
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Quote:
Originally Posted by civhatch90 View Post
Looking for fork tubes (do not need the entire front end, just the tubes) for a 1974 R90/6.
PM sent
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Old 10-29-2012, 03:23 PM   #533
dan-o
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looking for a good used exhaust crossover tube/clamps and a choke lever assy for a /5. building a bike on a tight budget. thanks
edit (found the choke lever) still need the crossover

dan-o screwed with this post 10-30-2012 at 05:26 AM
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Old 10-29-2012, 04:42 PM   #534
Airhead Wrangler
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Quote:
Originally Posted by dan-o View Post
a choke lever assy for a /5... building a bike on a tight budget.
Bend yourself some of these out of some heavy wire. Solved.

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Old 10-29-2012, 06:23 PM   #535
bmweuro
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R100GS Rear Wheel and Sidestand

According to BMW these are no longer available. Good spokes, runs true. Light corrosion on the spoke nipples and hub. I will have the tire removed before shipping. $400 or OBO plus shipping.





Sidesand is in pretty good shape. Has a couple of holes drilled in the foot. $75.00



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bmweuro screwed with this post 10-31-2012 at 08:33 AM
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Old 10-29-2012, 11:43 PM   #536
boxerboy81
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Quote:
Originally Posted by dan-o View Post
looking for a good used exhaust crossover tube/clamps and a choke lever assy for a /5. building a bike on a tight budget. thanks
Hoover vacuum tube from the local shop spares bin. Perfect fit, but don't get a plastic one!
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Old 10-30-2012, 12:57 AM   #537
tete
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Quote:
Originally Posted by dan-o View Post
looking for a good used exhaust crossover tube/clamps and a choke lever assy for a /5. building a bike on a tight budget. thanks
I made some from using some the old cable from the original pull and a photography pin top cap. works great and looks the part. I do have the magura one that came with my bike if youre interested however. i will not be using it as my bike is far from a restore.
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Old 10-30-2012, 05:45 PM   #538
headtube
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Looking for a center stand for a 79 R100 RS. Please and thank you.
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Old 10-30-2012, 06:10 PM   #539
DiabloADV
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21"x1.85" Excel Rim laced to new /5 hub. Perfect for building your airhead scrambler/dirtbike! Built by Woody's Wheelworks. With installed new bearings, 40 stainless spokes, etc. etc. The best possible offroad wheel. I got it to build my dualsport airhead, but I have gone with a Honda front end. Did I mention it's new? $400 plus actual shipping cost from Nor Cal.




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1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
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Old 10-30-2012, 07:34 PM   #540
SDVET
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Lester Wheels

Anybody got a set of Lesters I can use on a R90/6?
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