PNW Rainier Gen 3 Issues- Mtbr.com
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  1. #1
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    PNW Rainier Gen 3 Issues

    I am likely describing this incorrectly but my gen 3 Rainier is not pushing the actuator back after the lever is pressed, resulting in the post lowering when weight is put on it. I took a small spill on my last ride when I stalled out on a steep short climb. I saw no damage other than a turned saddle, so I loosened*the seatpost collar, got it straight, and went on with the*ride.*

    When I got home I noticed the dropper was not actuating smoothly so I pulled it out and that is when I noticed*that the actuator was moving quite rough and in some cases getting stuck "on" and not returning*to neutral*without a bit of an assist.*

    For the life of me I cannot see anything*physically at issue but it feels like it is just not getting enough push-back from the rod in the post to*reset the actuator. I have only had the post for a few weeks now and a handful of rides, so it is very clean and not in need of a service at all. Nothing on the actuator itself is bent.

    What does the nut on the top of the post do? When I turn it I can see the post moving, but I don't*see any other movement.* *

    I am at a loss. This dropper is so simple I cant imagine I am missing something, but I must be. I can't believe I would have damaged anything in the fall, it was so minor.

  2. #2
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    I had this issue as well, it's a known problem on the early gen 3 posts. The short description is that the actuator sticks. Just email PNW with a copy of your receipt and they'll take care of you. I think it's [email protected]

    In the meantime, try putting some chain lube on the pivots. That made mine work normally for another week while the new part arrived.

  3. #3
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    Ty ungod, that is mildly comforting. Lazy (or efficient, you decide) me basically copied the meat of this post from the email I sent PNW. If all I need is a new actuator this will be a simple process. I had to ride with a static post Saturday and even though I only had like 4 rides in on the dropper I did not like going back.

  4. #4
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    To close a loop, PNW got back to me super-duper fast and confirmed the actuator issue and process. I should have a new one on the way soon. Hats off to the customer service team.

  5. #5
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    Yeah PNW's service has been really good to me as well. Glad you got it fixed!

  6. #6
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    A coupe weeks ago I got a notice from PNW saying any one with a rainier gen 3 should replace the actuator. Just installed mine and the lever feels way better. Its a major improvement in that there is less lever force needed and it seems smoother. I never had any problems but I see why they recommend it. I would guess the new actuator has more leverage.

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