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Extended Swing Arm and Rear Suspension?

Discussion in 'The Garage' started by IhaveAnXS650, May 6, 2016.

  1. IhaveAnXS650

    IhaveAnXS650 XS650 New Member

    I want to go for this look with a motolanna swing arm and yss rear suspension. What do you think is the length of these rear shocks? Should I try this at all? Thanks
     

    Attached Files:

  2. fredintoon

    fredintoon Fred Hill, S'toon. Top Contributor

    Hi IhaveAnXS650 and welcome,
    If you extend the swingarm you'll need longer stiffer shocks just to get the bike's stance and ride back to where it was before.
    But should you?
    From your profile, I'd advise riding the bike "as is" for this riding season so you get a feel for the machine.
    And a bike's "look" is far less important than how it goes, eh?
     
  3. gggGary

    gggGary Stop that! Top Contributor XS650.com Supporter

    You have a special frame the top shock mounts are lower and forward of where they are on a standard frame, not a big deal but as Fred sez with that top shock mount and a long arm your shocks will have a "laid down" look to them. proper action can be achieved with by correct springs and damping. Chain, chain guard clearance will be one issue. Top shock mounts can be moved but that's not trivial frame surgery.

    Some classics used that laid down look to great success.

    [​IMG]

    While others kept more vertical.

    [​IMG]
     
  4. Max is 4" on stock arm because as you extend arm you widen axle length . I have done many 3" ones and stock shock still works but not a stiff. 4" or longer shock must be taller for stock height. Now you could get another swing arm from another bike like a GS750 and with a little work you don't change the axle length. I have used GS GPZ and CB arms on XS650 for a little stretch and all worked or you can buy a aftermarket square tube arm that is made for your bike too but they are costly.
     
    bone12 likes this.
  5. gggGary

    gggGary Stop that! Top Contributor XS650.com Supporter

    interesting that the shock angle kinda mirrors the cylinder angle in those 2 examples.
     

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