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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: jsngrimm on October 21, 2017, 02:18:35 AM

Title: Replacing Rear Shock
Post by: jsngrimm on October 21, 2017, 02:18:35 AM
Probably very stupid, but quick and easy question. My '87 K100RS has an aftermarket shock on it, but it's leaking oil, the bushings are really shot (I can turn/wiggle it side to side a pretty scary amount), and the spring is rusted, so I bought a replacement. I'm just wondering the best way to jack the back of the bike up to install the new one, I'm used to UJMs with dual shocks where I can just change one at  a time, any ideas?  :bmwsmile
Title: Re: Replacing Rear Shock
Post by: gazman on October 21, 2017, 05:32:15 AM
2 saw horse's an a 2x4 or ratchet strap around frame an tree branch or whatever
Title: Re: Replacing Rear Shock
Post by: Martin on October 21, 2017, 06:15:12 AM
Place the bike on the centre stand, chock up the back wheel. You need to chock it so that the old shock just pulls off, remove old shock and fit new shock. Do not let the final drive drop as you can tear the boot, less chance of doing this if you leave the wheel on.
Regards Martin.
Title: Re: Replacing Rear Shock
Post by: The Mighty Gryphon on October 21, 2017, 11:44:16 AM
Bike on center stand, put a thin board(I use a 1x3 x 36" long) under the rear wheel  to act as a lever.  Undo the mointing bolts and using the board, wiggle the wheel up and down as you pull on the shock.  Reverse to install.  Easy peasy.
Title: Re: Replacing Rear Shock
Post by: Chaos on October 21, 2017, 03:41:51 PM
What?  You skipped right to how to change it and left out "can xyz shock be rebuilt?", then "what aftermarket shock is the best?", then "they all cost too damn much",  then "this forum is no damn help at all and I'm leaving and never coming back!" :clap: :hehehe
Title: Re: Replacing Rear Shock
Post by: Andrew2 on October 21, 2017, 07:39:22 PM
  I'm also interested if the standard shock can be rebuilt and if not what aftermarket alternatives are available without breaking the bank. I know Ikon here in Australia are one option.

  Cheers
  Andrew
Title: Re: Replacing Rear Shock
Post by: Martin on October 21, 2017, 10:32:22 PM
RAD in Brisbane rebuild OEM shocks and are slightly upgraded. I'm on my second one in twenty years. They are a lot better than some and not quite as good as some. However I will keep on using them as they are fine definitely for the price which I think last time was under $300.00 Au.
Regards Martin.
Title: Re: Replacing Rear Shock
Post by: jsngrimm on October 21, 2017, 11:18:15 PM
What?  You skipped right to how to change it and left out "can xyz shock be rebuilt?", then "what aftermarket shock is the best?", then "they all cost too damn much",  then "this forum is no damn help at all and I'm leaving and never coming back!" :clap: :hehehe

They do all cost too damn much, I can get a set of UJM twin shocks for what I paid for a used OEM K100 monoshock  :hehehe Shock on there is a nice Works Racer with gas damping but it's just shot all to hell, bushings, seals, spring, everything is corroded or leaking. Easier to just get another one
Title: Re: Replacing Rear Shock
Post by: Andrew2 on October 22, 2017, 01:06:27 AM



  Thanks Martin, I'll keep them in mind.


  Cheers
  Andrew