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Discussion Starter #1 (Edited)
BMW Airheads - All the same size?

Let me start by saying I have been pouring all over this board for over 3+ months now and its been a wealth of knowledge. From these posts and threads, I have narrowed my project build bike to a BMW Airhead (R series) from the late 80s-early 90s. My question is - I am having a hard time discerning which R series would be the largest/tallest bike to start with as I am 6'6", 200lbs. Can anyone shed any light on say an R100R vs R100GS vs R80 or are all R series bikes the same frame, just with different motors/forks- some for touring, others as dual sport, others for road? Looking for the largest bike in this family I can find as a starting point.
 

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The R100GS has the tallest seat height. According to the Haynes manual 850mm compared to 807mm on other Mono models.
What are your plans for the "build"?
 

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a late r100r will have a paralever rear end, as will some of the gs. if you start with an r or other road bike you won't have to make such dramatic suspension mods. but there's possibly more gs and other late airheads.
 
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