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  1. #1
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    New Trek and a few questions

    So let me start by saying that I just got my first full suspention bike, and I got a Fuel EX9. It is a great bike but I am having trouble getting the shocks to a good point for fine tuning. I can't find a chart to that shows if you weight "X"lbs then set rebound and air to "X". I need this for both the fork and the rear shock. Any help would be great.

    Thanks for all the help,

    Ben

  2. #2
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    You can find the suspension set-up PDF on trek's website, fyi.

  3. #3
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    I have found on my ex7 that I run ~5-10 psi under the recommendation. Also it took 3-4 rides for the shocks (front and rear) to break in. Seemed unbalanced compared to the '07ex8 that I had tested (and it had been ridden hard and put away wet). After 40-50 miles it is like riding a couch down the trail and seems less finiky about the setup (ie I don't notice a huge difference +/- 5 psi).

  4. #4
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    Thats good to know about the shocks breaking in. I didn't think about that. I have put about 30 miles on it in the last 2 days (got it on Sunday). What setting do you use on the RP23. I know that there are 3 different settings for ProPedal and open. Do you tune it in Propedal or open.

  5. #5
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    I also found that I use less than the recommended setting. Forget about the recommended psi, just measure your sag %. To do so you should set the propedal open and rebound full fast (all the way counter-clockwise). Then:

    1) Measure shock's total stroke

    2) Push the o-ring up against the dust wiper

    3) Find a flat surface (e.g. garage) and mount the bike without excessively compressing the suspension, then pedal a couple times.

    4) Dismount (again, w/o overly compressing) and measure the distance from the dust wiper to the o-ring.

    5) Divide this figure by the total stroke and that = sag %.

    6) Add or reduce pressure in 5 psi increments until you're at Trek's recommended sag %.for the EX9.

    7) Remember to set your rebound back to the desired setting!

  6. #6
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    Sweet thanks for the help. Is it the same for the rear shock aswell? I have heard 25% of the shock is the right sag setting but I am not sure about that. Any tips for that?

    Cheers

  7. #7
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    Definitely check Trek's recommendation for your model. I have the Remedy and they suggest 30% in the rear and 20% sag in the front. The EX9 may not have the same recommended settings. If you bought new, your bike should have came with a manual detailing suggested sag %. If not, check Trek's website.

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