Seat pan repair / Seat Concepts install

Discussion in 'GS Boxers' started by slartidbartfast, Feb 26, 2013.

  1. slartidbartfast

    slartidbartfast Love those blue pipes

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    I cut a 'V' groove along the line of the split and went to work - first welding the inside, then grooving and welding from the outside
    [​IMG]

    Finished off by grooving out the remaining deep cuts on the inside (that had not split yet), welding those up then dremeling away the raised weld
    [​IMG]

    I can't say I'm terribly proud of the weld quality - but for a first attempt, I'm reasonably happy. It seems like it's going to do the trick.
    Now on to the seat installation - at last!
    #21
  2. Synisalo

    Synisalo Adventure wannabe

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    Dont be too hard on yourself... that looks like a pretty damned good weld period, not just for the first try!
    #22
  3. MsLizVt

    MsLizVt pfft ...

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    Yay! :D

    Did the original plastic melt enough to blend with the new?







    #23
  4. slartidbartfast

    slartidbartfast Love those blue pipes

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    There was no sign of weakness at the weld while I was fighting with the cover - and short of impact in a wreck, I can't see how the sides ofthe seat would ever be subject to more abuse. I had to warm the cover up a bit to get the final stretch applied.
    [​IMG]

    And voila! Here it is fitted - showing about the same height as stock (next pic). In my unscientific 2-minute sit, it seems more comfortable and supportive than stock but not as firm as the Corbin. Fortunately it's nowhere near as heavy as the corbin either, although noticeably heavier than stock. It's also noticeably higher at the front so I will probably remove the 3/8" stand-off I fitted ages ago to raise the front of the stock seat a bit.
    [​IMG]

    I haven't finished stapling down the corners of the cover yet and I expect the slight wrinkle will go away once things bed in and it sits in the sun once or twice (that's what happened when I did the stock cover). Pleased that the color matches the pillion seat so well, although I'll probably install the new cover that came with the front seat.

    Here's the old seat for comparison - which I re-covered with some heavy grade marine vinyl about 9 years ago.
    [​IMG]
    #24
  5. JimVonBaden

    JimVonBaden "Cool" Aid!

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    Looks good!

    Why yellow?

    Jim :brow

    PS Definitely recover the rear so the seams match!
    #25
  6. slartidbartfast

    slartidbartfast Love those blue pipes

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    9 years ago, the original cover was split and I just wanted something to keep the water out before a trip. The local fabric store had several yard off the end of a roll of heavy duty vinyl for just a few bucks - It just happened to be yellow (I think the other choice was purple metalflake). I meant to replace the cover with black but the yellow just sort of grew on me.

    When I placed the order with Seat Concepts, I didn't know they were going to send a passenger seat cover too so I sent them a pic and asked for a similar yellow in any combo (i.e yellow top, black sides, vice-versa, or all yellow.) This is what they sent.
    #26
  7. Ken Fritz

    Ken Fritz Long timer

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    So how does the seat fit next to the tank? My seat fit nice and close to the tank until I got a Bill Mayer Saddle put onto my OEM seat pan. Now it bows out horribly on the right side and too far on the left side, too -- it has big gaps between the seat and tank.

    I've tried a heat gun and heavy straps to "pull/squeeze" it into shape (both on and off the bike) to no avail. It's irritating on the knees. No, BMS doesn't want to do anything about it or hear about it - been there, done that - just got blown off when I told them about it. " Bad BMW seat pan, yada yada yada." I love the saddle, except for the shape around the tank.
    #27
  8. JimVonBaden

    JimVonBaden "Cool" Aid!

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    Sounds like a cover installation issue. They pulled the cover on too tight and bowed the seat pan. Likely Slart didn't get his that tight. I know I didn't when I installed mine. It fits just like stock.

    [​IMG]

    Nice and snug.

    Jim :brow
    #28
  9. slartidbartfast

    slartidbartfast Love those blue pipes

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    Finally got to put a few miles on the new seat yesterday. It's a bit tough to say how it would do on a 500-mile+ day (I hope to find out in a few weeks) but in the couple of hours I sat on it yesterday I noticed nothing - and that's a good thing! It's definitely more comfortable than the Corbin and does not make it so hard to get my feet down. Friends noticed the seat, and commented on its good looks.
    #29
  10. slartidbartfast

    slartidbartfast Love those blue pipes

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    It certainly seemed to. There was no sign of any weakness along the old split when I was fighting with the seat cover. It will obviously take quite a bit more practice before I can get the settings and motion for the welder just right so that the base material and welding rod melt just enough but not too much.
    #30
  11. slartidbartfast

    slartidbartfast Love those blue pipes

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    Following an 1800-mile weekend trip to/around the Texas Hill Country I can now comment on the long-distance comfort of the Seat Concepts seat for the R1100GS.

    It's a definite improvement over the stock seat. While I have done similar long rides with the stocker, I was uncomfortable after about 200 miles and miserable after 500. With the SC seat, I was mildly uncomfortable after about 300 miles and that was as bad as it got. By the end of the return trip, I was standing to ease the circulation every twenty miles or so - but I do that with every bike and every seat.

    Unlike the the Corbin, which is rock hard, the SC seat still has some cushioning. It also doesn't cut into the back of my legs like the Corbin and I can reach the ground as easily as with the stock seat. Also, I can still move back and forth easily, whereas the Corbin tries to lock you into one place.

    I rarely take the big GS on anything more gnarly than a gravel road but do not believe the SC seat would in any way compromise my ability to ride the big GS like a giant enduro bike if I so chose.

    Overall, I'm comfortable saying the Seat Concepts seat is the best of the three. More suitable for long distances than the stock seat, with none of the compromises of the Corbin.
    #31