Gss (garden shed special)

Discussion in 'Airheads' started by lewisjohn, Oct 28, 2011.

  1. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
    67
    Location:
    Swansea South Wales
    I fancied a challenge this winter,so am converting an old RT into my idea of an off road special,i will try and post photos and info regularly.

    John

    Attached Files:

    #1
  2. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
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    Swansea South Wales
    Were its at currently

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    #2
  3. disston

    disston ShadeTreeExpert

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    WOW ! You did all that in 12 minutes? That's what I call fast. :huh

    Nice project.

    Charlie
    #3
  4. lstzephyr

    lstzephyr Solo con rambo

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    Awesome! I love these rs to gs shed conversions because it is something I could see myself doing, and would actually want to do!
    #4
  5. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
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    Another photo of my project,(rear wheel off an R100 gs Paralever,came with a few broken spokes,so am going to have a go at rebuilding it myself.Am also building a blasting cabinet,so am going to try soda blasting on the hub.

    Attached Files:

    #5
  6. Beater

    Beater The Bavarian Butcher

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    Atlanta, GA, USA

    Ooooo ... I'm going to be doing this exact thing this winter. I have to find that hub though. Where'd you get yours?
    #6
  7. One Less Harley

    One Less Harley OH.THAT'S GONNA HURT

    Joined:
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    Those spoked tubeless GS rims are known for being almost impossible to build up, at least according to all the info tossed around here.
    #7
  8. Fudmucker

    Fudmucker ex-lurker

    Joined:
    Apr 8, 2008
    Oddometer:
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    Location:
    Pretoria, South Africa
    I am toying with doing something like this on a '91 R80 Monolever I found.
    I already have a R100GS front with R100GS rear wheel.
    (20mm of milling the rear hub is needed to fit the Monolever final drive.)
    All I was wondering about is the strength of that upper shock mounting.

    I see you have extended the rear swingarm and are not using the original mount on the diff.
    Has that affected the alignment of the shock mounting?

    Subscribed with interest! :evil
    #8
  9. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
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    Location:
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    I bought the wheel complete,saw that there were two broken spokes,so thought lets go for it,and cut all the spokes out with an angle grinder:huh.I then had to drill out all the nipples in the hub,and the remains of the spokes out of the rim.I am pretty confident that i can do the rebuild,i am an engineer by trade,and have already trued the rim on my 1200 GSA.The swingarm is extended by 75mm,i am going to strengthen the frame and shock mount,so cannot see any problem with rigidity.I am trying a different method with fitting the paralever hub to the RT bevel box.I am leaving the hub as standard but am modifying the brake shoe mounts(extended pivot pin and actuating cam),and a machined aluminium ring bolted onto the bevel box to make up the 20mm gap between the hub and bevel box,an advantage of doing it this way is that the rim does not need any more offset than standard

    Attached Files:

    #9
  10. ADK

    ADK ____

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    Wouldn't it be easier to replace spokes one by one? :dunno
    #10
  11. SUVslayer

    SUVslayer Long timer

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    The knobbies are a good place to start :clap
    #11
  12. lewisjohn

    lewisjohn Adventurer

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    All the nipples were seized solid in the hub making it impossible to true the rim.The spokes were also rusted,so i decided to rebuild the wheel with stainless steel spokes and nipples.All the holes in the hub were cleaned out with a drill.The nipples will be coated with marine grease to try to stop them seizing again.
    #12
  13. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
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    latest update
    Just fitted renthal bars and the pad off my GSA.I could not decide between old school alloy guards or plastic,i finally decided on UFO vintage enduro guards.The rear wheel will be next on the list,hoping to start rebuilding it sometime next week.I have also just bought a tank off an old police bike,the one with the lockable compartment .

    Attached Files:

    #13
  14. igormortis

    igormortis Cafe Reise

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    Dec 22, 2006
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    1,480
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    London
    Looking good! I love stuff that happens in a shed.

    What are your thoughts regarding the rear wheel offset? ie. it no longer being centered?
    #14
  15. lewisjohn

    lewisjohn Adventurer

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    Oddometer:
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    Location:
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    The wheel will be on the centre line because i am not machining the inside of the hub to close the gap between the paralever wheel and RT bevel box,i am extending the brake pivot and actuating shafts and fitting a machined alloy rim to the bevel box.The wheel will then be built with the standard offset.
    #15
  16. lewisjohn

    lewisjohn Adventurer

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    Oddometer:
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    Finished the extension for the bevel box,just got to fit new brake shoes and clean and paint the hub,The wheel will be respoked using the standard offset.The other method for fitting the paralever wheel uses a 12mm offset to get the wheel running in the same axis as the front wheel. I wasn`t comfortable with that much offset hence the alternative method i am using.

    Attached Files:

    #16
  17. Nailhead

    Nailhead Free at last!

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    You might try some anti-seize-- it's better for that kind of thing than grease.
    #17
  18. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
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    Location:
    Swansea South Wales
    Project making progress,i managed to find a tank off an old /6 police bike,i like the old school look.

    Attached Files:

    #18
  19. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
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    Location:
    Swansea South Wales
    Finished my Paralever wheel conversion,i am very pleased with my efforts with the wheel rebuild i have managed to get it to run 2mm out of true radially and axially on the bench with a straight edge and rule.I am back in work tomorrow so will set it up in the lathe and run a DTI on it ,should get it pretty true.:norton.

    Attached Files:

    #19
  20. lewisjohn

    lewisjohn Adventurer

    Joined:
    Jun 19, 2008
    Oddometer:
    67
    Location:
    Swansea South Wales
    Made a little fixture to spin the wheel in my bench vice,using my DTI,got it to running within 0.025"-0.030"

    Attached Files:

    #20