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  1. #1
    mtbr member
    Join Date
    Apr 2011

    2013 Epic Marathon. What fork do I have?

    I have a stock Epic Marathon 2013, finished the lower leg service, about to change the damper oil I need to know what model fork I have. I understand that its a SID 100mm Solo air Brain, need the model. RL, World Cup, Xx World Cup, RCT3, RLT, RLT3, RL3?

  2. #2
    mtbr member
    Reputation: WR304's Avatar
    Join Date
    Jul 2004

    2013 Epic Marathon. What fork do I have?

    It's none of the above.

    The name of the fork refers to the damper inside (RL, RLT, RCT3 etc). With the Specialized brain cartridge inside you'd call it a Rock Shox Sid Brain fork.

    The brain cartridge is a nitrogen charged sealed unit so you're best off leaving that leg intact and just servicing the lower legs and air chamber side of the fork which are standard Rock Shox parts.

  3. #3
    mtbr member
    Join Date
    Jan 2004
    Wr is correct. When the fork is "brained" they take out the cartridge be RL or Rc3t and. Replace it with the brain cartridge. That is how they make a sid or Reba that is non-brained a brain fork.

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