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Thread: R80RT ???

  1. #1
    Rally Rat MarkF's Avatar
    Join Date
    Mar 2003

    R80RT ???

    OK I've read the previous posts. Now I'm asking. I'm thinking of adding an airhead to the garage. Looking at earlier R90RTs. Any reason to get a monshock over the dual shock? Anything else about the 1983 R80RT I should worry about? Thanks.


    P.S. I know I drool over the R90/100S but my Oilhead has an S fairing and I would like a more all weather ride. The RT might be it!

  2. #2
    Blocking the slow lane
    Join Date
    Mar 2003
    Edwardsville, IL
    What I like about my monoshock bike:

    - Easy tire changes
    - No rear wheel bearings to wear out
    - One shock is easier to adjust than 2
    - Stiffer K bike front fork with brace
    - No rear wheel splines to wear out

    I'm sure the two-shock folks have their preferences as well.
    Jon Diaz
    BMW K75/K12GT
    BMWMOA Ambassador

  3. #3
    On the Road TonyR80RT's Avatar
    Join Date
    Sep 2003
    Oviedo, Florida
    Kinda new around here,..but for what it's worth...

    I purchased my first BMW a year ago. 1984 r80rt. I put 7k miles on it and didnt even change the oil. All I did was put air in the tires and keep the battery full. I rode it through torrential Florida rains and Sunny hot afternoons as well. Can't say I have ever had a bad ride! I have the 21" winidshield on mine with full fairing. In light rains , without stopping for any red lights, I can honestly say I never got wet below the shoulders. Nice bike. Starting to look at minor maintenance tasks now, maybe some new fork seals, possibly front pads( havent checked them yet). I just took the tank off the bike, to expose a pretty dirty engine underneath. I took off the lower fairing and am in the process of cleaning up a little. Also replacing the air filter. I think the one on there is the stock filter from BMW.


  4. #4
    Former Club President DonHamblin's Avatar
    Join Date
    Mar 2003
    Lee's Summit, MO



    A couple of "bikes ago" I had an '83 R80RT. It was a very enjoyable motorcycle. I still feel that the weather coverage was better than either my K100RT or my K1100LT - loved that fairing.

    My "repair" experience included:

    - Learning to be very careful about checking / adjusting the valves at every service. On "mine" the combination of 1983 valves (and seats) and the available gas made this as important as changing the oil!

    - Spline lube - do it!

    - Some examples (mine) had "weak" rivets in the clutch basket (flywheel). Repair of a "failure" can require replacement of both the clutch and the transmission input shaft.

    - Bearing failure in the final drive (still believe that might have been caused by a "wheel issue" that was caused by an improper maintainence proceedure - some day I'll tell you a very exciting story).

    - Being equipped with both crash bars and an oil cooler made oil changes a pain (removal of exhaust system or very slim fingers was required).

    The next owner (the son of a friend of mine) did have to have the heads rebuilt around the 100,000 mile point because of valve and seat wear.

    I only sold it due to a serious case of new bike fever!


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