Page 1 of 2 1 2 LastLast
Results 1 to 15 of 24

Thread: Looking to buy an R100s for my first airhead - have a bunch of questions

  1. #1

    Looking to buy an R100s for my first airhead - have a bunch of questions

    Hello everyone, thanks for the warm welcome in the newbies forum.

    I am looking to buy my first airhead after having ridden superbikes and Japanese sport touring bikes for years and years.

    I have been reading as much as possible on these bikes, but have some questions I am hoping you might be able to help:

    - what's the range of (real prices) I should expect to pay for one of these bikes? I realize that everyone thinks their classic bike is "special" and worth a premium, but there has to be a general range.
    - what's it cost to rebuild one of these motors from top to bottom?
    - if I found a bike and wanted to restore it, assuming it has all the right OEM parts, what's it cost to do a high quality repaint on a bike such as these.
    - can the OEM S fairings be found if required?
    - what other parts are unobtainium? It seems like the badges are in very short supply (like the tail badges). What about other more consumable parts like footpegs, seats, mirrors and switchgear and such?

    I am thinking it would be fun to have a "very nice" ridable bike, maybe something I could take to local enthusiast events and shine er up and meet others.... but not something to store or a museum piece.

    Anyhow, any resources or advice is really appreciated. I'm having a blast just researching these bikes and learning about them

    mullet
    Bend, Oregon

  2. #2
    From the 2012 edition of the Vintage Motorcycle Price Guide:
    1977 R100S prices are $900 for grade 6, $3000 for grade 3 and $4500 for grade 1. For a 1978 model, the figures are $700, $2100 and $3500.
    A condition 6 bike is a junker or parts bike. A condition 1 bike is showroom new. A condition 3 bike is one that is original, all parts present, everything works, excellent cosmetic shape. You don't want to mess with a condition 6 bike and you won't find an honest condition 1 bike.

  3. #3

    Some things to consider

    You might be better off looking for a nicely maintained well cared for R 100S or RS, you can pick and pull items to refresh in the off season as needed. There are many pitfalls related to restorations and buying a bike in need of a restoration.

    Some things to consider with a restoration project

    The cost can easily get out of control. If you don't have the tools and knowledge to perform a mechanical restoration you can plan on spending some serious money shipping components to various shops to have them rebuilt/restored to original specs.

    A cosmetic restoration can be equally expensive and very time consuming unless you can do it yourself or have a local body shop that would help you out for a reasonable cost.

    A restoration project is a big undertaking especially if you want it spot on correct. If you want a non rider project bike to occupy you spare time, garage space and a good amount of your bank account until its a rider there are plenty out there but let the buyer beware. I would suggest opening up your scope of what you are looking for as far as year and model but look for a bike with 25,000 to 75,000 miles on it with service records. You can always add an "S" fairing to a standard R100 or replace an "RS" fairing with the smaller "S" fairing to get the look you want.

    I don't want to be the one to rain on the parade but a restoration project can take as long as a year or two and cost much more than the purchase price of a nice airhead that you can get on and ride all Summer and tinker with it in the Winter.

    Choose wisely.

  4. #4

    The cost of paint work

    Call Holt BMW for an eye opener on the cost and time line for a repaint.

  5. #5
    Quote Originally Posted by 69zeff65 View Post
    You might be better off looking for a nicely maintained well cared for R 100S or RS, you can pick and pull items to refresh in the off season as needed. There are many pitfalls related to restorations and buying a bike in need of a restoration.

    Some things to consider with a restoration project

    The cost can easily get out of control. If you don't have the tools and knowledge to perform a mechanical restoration you can plan on spending some serious money shipping components to various shops to have them rebuilt/restored to original specs.

    I don't want to be the one to rain on the parade but a restoration project can take as long as a year or two and cost much more than the purchase price of a nice airhead that you can get on and ride all Summer and tinker with it in the Winter.

    Choose wisely.
    Great advice thank you.

  6. #6
    I can shed some light on painting costs. I had my 1952 Indian Chief painted one year ago. My painter, a body shop in Auburn, Indiana, charged $50/hr. for "custom work". He had 30 hours in it. Then there was about $400 in paint+supplies. I had done all of the heavy dirty work, like sand blasting and priming with PPG epoxy.

  7. #7
    Registered User Bob_M's Avatar
    Join Date
    Aug 2004
    Location
    Portland Oregon
    Posts
    1,907
    Quote Originally Posted by 69zeff65 View Post
    You might be better off looking for a nicely maintained well cared for R 100S or RS...,
    Choose wisely.
    This is good advice. Consider also the R100 or R100T. BMW was making naked bikes when they were just called bikes

  8. #8
    For rainy, cool Cascade Range riding, I'd put a word in for an RT---nice ones can be had for reasonable money, and the fairing will keep you going when you'd otherwise be looking for shelter.

  9. #9
    Registered User lkchris's Avatar
    Join Date
    Mar 2003
    Location
    Albuquerque, NM
    Posts
    6,271
    IMHO the 1981-on bikes are night and day better bikes than the earlier ones. Yes, you'll have to get beyond the valve recession thing, but it's fixed once fixed. Nikasil engines are bulletproof and the old iron engines aren't.

    And, all the engines and transmissions are the same in a given year and all it takes to make one an "S" is the fairing and corresponding handlebar. Those are the only things that ever distinguished an R100S or R100CS from any other R100, except in the first years when you could get a tamer motor in an R100/7.

    The nicer clutch/flywheel and electronic ignition bring the newer bikes out of the farm equipment category. The only advantage to the first R100S bikes is that you might find one with wire wheels.
    Kent Christensen
    21482
    '12 R1200RT, '02 R1100S, '84 R80G/S

  10. #10
    Registered User
    Join Date
    Dec 2009
    Location
    Huntington Beach CA
    Posts
    105
    Look for one someone else has done most of the work. I love BMWs but they can be money pits. The only way you get your money back is to drive it. The R100S has a paint job that would be very expensive to duplicate and worth less without the stock paint.

  11. #11
    Check out what this one may be selling for.
    http://www.ebay.com/itm/1978-BMW-R-S...xZCRa3&vxp=mtr
    1977 R100S, 1978R80/7,1973 R60/5
    1977 Triumph Bonneville
    1970 Triumph TR25W
    1970 Honda CT90

  12. #12
    Quote Originally Posted by lkchris View Post
    IMHO the 1981-on bikes are night and day better bikes than the earlier ones. Yes, you'll have to get beyond the valve recession thing, but it's fixed once fixed. Nikasil engines are bulletproof and the old iron engines aren't.

    And, all the engines and transmissions are the same in a given year and all it takes to make one an "S" is the fairing and corresponding handlebar. Those are the only things that ever distinguished an R100S or R100CS from any other R100, except in the first years when you could get a tamer motor in an R100/7.

    The nicer clutch/flywheel and electronic ignition bring the newer bikes out of the farm equipment category. The only advantage to the first R100S bikes is that you might find one with wire wheels.
    +2. My '84 R100 was sold as an S or CS but came to me without the fairing (the original owner had the dealer remove it?!?). IIRC, the number of actual S models, that had higher compression and different final drive ratio, imported into the US was small. The rest, including mine, were as lkchris notes. I added the fairing and bars and it was the best rider of the three airheads I've had.
    '61 Clubman's Gold Star, '13 690 Duke, '13 Daytona 675R, '17 1290 GT, '18 Street Triple RS (gone but not forgotten: '76 R75/6, '84 R100, '76 R90S)

  13. #13
    Quote Originally Posted by georgej View Post
    Check out what this one may be selling for.
    http://www.ebay.com/itm/1978-BMW-R-S...xZCRa3&vxp=mtr
    I actually bid $9600 for it, which was top dollar for me. Its now at $9700.00



    mullet
    Bend, Oregon

  14. #14
    That's a museum piece, Mullet. The '78 Red Smoke R100S models were/are the most beautiful motorcycles BMW made in the last 50 years, IMHO.

  15. #15
    Registered User lkchris's Avatar
    Join Date
    Mar 2003
    Location
    Albuquerque, NM
    Posts
    6,271
    Holt BMW in Athern, OH, can paint your S parts smoke red so nicely you can't tell it from a factory paint job.

    I think I'm at least 95% correct with the following trivia: the eBay description for this bike calls the saddlebags Krausers. They are instead Denfelds ... which is what you got if you ordered bags from the dealer.
    Last edited by lkchris; 05-09-2017 at 05:43 PM.
    Kent Christensen
    21482
    '12 R1200RT, '02 R1100S, '84 R80G/S

Similar Threads

  1. Replies: 6
    Last Post: 05-31-2015, 04:31 AM
  2. 1979 R100S Provenance questions
    By sgtbill in forum Airheads
    Replies: 16
    Last Post: 01-02-2015, 05:44 PM
  3. A bunch of K75 questions......
    By rbertalotto in forum Flying Brick K-bikes
    Replies: 7
    Last Post: 06-24-2010, 04:08 AM
  4. Replies: 13
    Last Post: 07-23-2008, 12:27 PM
  5. Can You help with R90S / R100S fairing Questions?
    By MurphyPeoples in forum Airheads
    Replies: 18
    Last Post: 04-05-2007, 05:52 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •