Finally - Details for converting Adventure to Stock Seat

Discussion in 'GS Boxers' started by TheNaker, Nov 5, 2002.

  1. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada
    I finally completed the conversion of my Adventure's single piece seat to a stock GS two piece seat. It took a lot of trial and error to find the right part numbers, so to save anyone else the pain, I will list the numbers below. The parts (excl. the two seats which I got used for US$100) cost me US$450. Please note that I didn't include the tool tray or cover because I got the BestRest tool cover instead. I also didn't order the helmet lock because I can still use the helmet lock that came with the Adventure.

    Overall, I am very pleased with the conversion. I did it primarily for my passenger's comfort, but it also gave me more flexibility in using the rear seat area for luggage (without the passenger seat) and I like the stock two piece seat. Unlike most people, I find the seat quite comfortable (I used to have a R1100GS and put many miles on its stock seat).

    Anyway, here are the part numbers and a very brief description. Note that it looks like a lot of parts, but they are mostly screws and washers. Once you have all the parts, it is fairly self explanatory where they go. I took pictures of a regular GS without the seat on it for reference.
    (quantity: part number (description))

    2: 07-11-9-901-438 (screw)
    2: 07-11-9-931-018 (flat washer)
    1: 51-25-2-313-284 (lock cylinder)
    2: 11-13-1-460-677 (bolts)
    1: 51-16-2-313-396 (lock system)
    2: 07-11-9-936-440 (washers)
    1: 34-51-2-336-332 (bolt)
    1: 51-25-2-313-405 (lock mechanism)
    1: 46-54-2-309-514 (carrier)
    1: 07-11-9-931-823 (washer)
    2: 07-11-9-919-966 (screw)
    1: 46-54-2-313-559 (handle)
    1: 13-90-1-718-262 (screw)
    4: 52-53-2-313-291 (seat adjuster)
    8: 07-11-9-900-555 (screw)
    2: 46-51-2-314-464 (seat adjuster holder)
    4: 07-11-9-913-456 (bolt)
    4: 07-11-9-922-832 (locking nut)
    8: 07-11-9-931-018 (washer)

    I am trying to also attach some before and after pics. Let me know if you have any questions.

    Sean
    #1
  2. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada
    Here is the 'after' shot...
    #2
  3. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada
    and one more...
    #3
  4. impi

    impi Long timer

    Joined:
    May 31, 2002
    Oddometer:
    1,250
    Location:
    Loxahatchee, FL
    Do you find any difference in the windshield performance of the adventure with the lower seat fitted ?

    The setup looks quite neat. :thumb
    #4
  5. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada

    I didn't really notice in windshield performance a difference between the two seats. I guess it should be better with the adjustable two piece seat, but I didn't really notice it.
    #5
  6. etonline

    etonline Iowa 318 mi. 11 curves

    Joined:
    Feb 14, 2002
    Oddometer:
    189
    Location:
    Central-Iowa
    What was so expensive? Looks like your parts list is mostly screws and washers.
    #6
  7. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada
    90% of the cost was in three parts: the rear carrier (luggage rack), the handle for the rear rack and the lock mechanism for the dual seat. With BMW products, it doesn't take much to add up to US$400.
    #7
  8. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,307
    Location:
    San Francisco
    After looking at your pics, the two piece is butch by comparison. Suits the bike well.

    :dj
    R-dubb
    #8
  9. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada

    Thanks. Every time I walk over to my bike now, I am amazed how different it looks.

    The more I look at the two different seats, the more I am convinced that BMW put a lot more R&D into the two piece seat. It is more practical for two people and really gives the GS it's utilitarian appearance.
    #9
  10. redriveral

    redriveral Been here awhile

    Joined:
    Aug 16, 2002
    Oddometer:
    158
    Location:
    winchester kentucky
    I think the replacement seat looks better than the adventure seat. when i looked at the adventure at the dealer the that was the only thing about the bike that i didnt like, the seat they looked very uncomfterable on a long trip :walk :walk
    alan myers
    02 gs
    #10
  11. DawgDoc

    DawgDoc Adventurer

    Joined:
    Aug 24, 2001
    Oddometer:
    12
    Location:
    Montana
    What are you going to do with the adventure seat and parts?
    #11
  12. dapolrbear

    dapolrbear Buddah Head Adventurer

    Joined:
    Jul 13, 2001
    Oddometer:
    805
    Location:
    Los Angeles
    Would it have been easier to find someone with a standard gs and asked if they wanted to swap seats and assembly? I'm sure you would have had a lot of people willing to do the switch.
    #12
  13. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada

    It would have been easier and cheaper to find someone willing to do the swap, but there was no one nearby and the logistics complications of trying to do it with someone further away weren't worth the trouble. I couldn't have done this by mail because I would have needed the bikes side by side.


    Anyway, I am willing to sell the seat and parts necessary to convert a regular GS to the Adventure platform with the larger luggage rack and solo seat. But I am not going to give it away.

    Sean
    #13
  14. Gauloises

    Gauloises Void

    Joined:
    May 16, 2002
    Oddometer:
    116
    Location:
    Cloppa Castle
    Sean have you got any pics of the original ADV parts ?

    Cheers
    Gates
    #14
  15. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada
    I have lots of before and after pics of the parts on the bike. I'll try to post them tonight or on the weekend.

    Sean
    #15
  16. barbasma

    barbasma 100% CAROTONE

    Joined:
    Aug 19, 2002
    Oddometer:
    1,821
    Location:
    Sondrio (In the middle of the Alps) Italy
    i want to put an ADV seat on a GS standard...

    what do you do with ADV parts?

    thanks
    #16
  17. kiwiAdventure

    kiwiAdventure Long timer

    Joined:
    Nov 7, 2002
    Oddometer:
    1,424
    Location:
    Auckland New Zealand
    My wife and myself both enjoy the high black adventure seat. We only got the bike on Saturday and had our first 400klm run on Sunday. The seat is so much better than the standard GS and the Dakar seats.
    My advice would be forget the look of the seat. Have a go then make you own mind up.
    If you are going to fit road tyres and the GS seat you could save some money by buying the standard GS with the Adventure gear box. Or order the Adventure with the high black seat. The bike is still not as high as the Dakar with this seat.
    We both found the GS seat too soft and you tend to sit into the seat where you should sit on top with good firm padding for adventure riding. The high black adventure seat tends to sit you forward slightly and off your tail bone.

    Try the high black seat before you change to the GS seat
    :drums
    #17
  18. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada

    I still have the parts and would be willing to sell them for the right price...
    #18
  19. barbasma

    barbasma 100% CAROTONE

    Joined:
    Aug 19, 2002
    Oddometer:
    1,821
    Location:
    Sondrio (In the middle of the Alps) Italy
    i want the ADV seat because i like an higher position.. i'm 190 cm tall...

    but the high black seat is lower than the standard ADV seat? (90 cm)
    #19
  20. TheNaker

    TheNaker El Vagabondo

    Joined:
    Jul 5, 2002
    Oddometer:
    90
    Location:
    Oakville, ON, Canada
    Here are some before and after pics of the seat assembly.

    This is the Regular GS:
    #20