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  1. #1
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    Dropper Post for Fatty for cold Weather Conditions

    So I would like to install a dropper on my fatty and I am considering two options (I don't want to consider an expensive dropper):

    1 - a no name TMA dropr from EBay (~$120 US) - purely mechanical
    2- a giant contact from my LBS ~ $200 CAN - mechanical with some oil (I think)

    only concern is live in Canada where the winter temps can get low as -25c.

    any thoughts or recommendations for a budget dropper for cold weather?

  2. #2
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    I'm also in Canada. Last year went through 2 Reverbs on my FS trail bike that I ride spring to fall. In fall with temperatures around 7-8C, it was very slow, below 4-5C if was not functional. Replaced with 2016 Giant Contact Switch and so far this season 100% without issue. I don't think I rode colder than about 7 or 8C this year, but Reverb was already on its last leg at that point. I got mine for $239CAD.

    For my fat bike, I bought a slightly used Gravity Dropper Turbo LP that is yet to be installed and tested this winter. Since bike lives in the shed always cold, I figured this proven simple mechanical design will be my best bet. Will see how I like it, but so far I think even the Giant has potential to be a decent post for winter use. Hope this helps a bit.

    GD post was 90USD shipped from pinkbike just to give you an idea. As I said I have not used it yet, but decided to get it instead of an ebay Tmars etc for similar $.
    2018 RSD Middlechild
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  3. #3
    sluice box
    Reputation: Co-opski's Avatar
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    This should work eh!
    Dropper Post for Fatty for cold Weather Conditions-hite_rite_ad_from_fat_tire_flyer_vol_5_no_4_1985-1160x800.jpg
    ptarmigan hardcore

  4. #4
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    Gravity dropper, or the new e thirteen. Fully mechanical.

    I use to have a dropper... Their a fad unless you ride all mountain.
    Fatbike, XC bike, Gravel Bike....

  5. #5
    Elitest thrill junkie
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    Gravity dropper? It's all mechanical...
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  6. #6
    MaxTheCyclist.com
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    Quote Originally Posted by Jayem View Post
    Gravity dropper? It's all mechanical...
    My vote is for GravityDropper. Very nice piece of tech, if you can get past the look of the boot (the boot works and is 100% necessary).

    That said, I sold my GD post and bought a Thomson rigid. Can't really mess that up!
    Ultralight bikepacking and gear lists... MaxTheCyclist.com

  7. #7
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    9point8 fall line? They say it works cold conditions also.
    But what is cold? I ride -27celsius also so i don't use dropper post at winter.

    If Gravity Dropper does something to that rubberboot i might consider it.
    Life, Love & The Blues. And Fatbiking.

  8. #8
    bigger than you.
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    I've been riding a KS Lev for the past 2 years, in temps as low as 0f, never had a temperature related issue with it.

  9. #9
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    while there are some solid recommendations in the above, unfortunatley for me they are all above my price point - guess it is the TMars for me.

  10. #10
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    Used Fox DOSS? Mine is going on 2 years with no issues. Its not nearly as smooth as my Reverb and only has 3 positions, but it works in the cold.

  11. #11
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    I was deciding between new Tmars or used GD, and GD won based on great reputation and the ability to order any part in case you ever need to. Used ones can be found for the cost of new Tmars.
    2018 RSD Middlechild
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  12. #12
    is buachail foighneach me
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    Gravity dropper has been great for me. No issues in cold weather.

  13. #13
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    I don't know if someone still reading this.
    I had the Tmars last winter, because I was sure that a mechanical one would work better in cold weather.
    Unfortunately -15C is its limit.
    After 1 hour it stoped working.

    Next winter I am trying the E13 dropper or somthing else I guess.

  14. #14
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    Quote Originally Posted by OneTrustMan View Post
    Next winter I am trying the E13 dropper or somthing else I guess.
    The BikeYoke Revive looks compelling...
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    [WTB] 1987 Cannondale SM800, 20", Pink with airbrushed graphics.

  15. #15
    Elitest thrill junkie
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    Quote Originally Posted by J_Westy View Post
    The BikeYoke Revive looks compelling...
    I've used it in cool weather, 20F temps and above. I don't plan on using it in real cold weather, down to -F temps. Lots of stuff stops working at those temps, not to mention extended use of a hydraulic dropper at the cool temps (shortening seal life, etc.). A dropper on my fatty was kind of fun for a while, I used a Transfer at the end of the season, but I'd go mechanical and not give it a second thought for real winter riding.
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  16. #16
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    Had my Gravity Dropper Turbo LP without any issues for two winters on my fat bike. It did slow down very slightly in -20C but could just need a bit of cleanup and re greasing? Great post and the looks grew on me now, but man, their remote is the worst ever.

    Took my trail bike with Giant Contact Switch a few times out up to about -15C without any issues. Sold the bike since, but was super happy with this dropper and would have gotten one again, but could not beat the price of Brand X Ascend II post that will go on a plus bike I'm currently building. Will update this eventually of how it performs in cold weather.

    Had two Reverbs as my first droppers. Both were super slow or got stuck and did not return at all in +5C to +8C weather. Both were serviced professionally before they got sold.
    Last edited by kryten; 06-12-2018 at 07:26 AM.
    2018 RSD Middlechild
    2016 Norco Sasquatch 6.1
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  17. #17
    aka bOb
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    I ran a Fox Transfer in WI all winter without any issues down to about -15f.

  18. #18
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    Crank Brothers Highline has been good to at least -15F for me.

  19. #19
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    Having a X Fusion HiLo that is useless in the cold I decided to give Tmars a try since the cost/ risk ratio was relatively low.

    It's simple and does what expected. Construction seems well done.

    If you can't get past the rubber boot aesthetically, the 471 doe not have one. My only real gripe is that due to mechanism, the cable excess accumulates over the rear wheel when you drop the post.

    I wound up shimming it onto a FS bike that has a 30.0 diameter seat post where the cable routing is not an issue.

    I would probably buy a Gravity dropper if I had the money to do so, but the Tmars is a decent alternative.

    Like any dropper, gettting the seat post clamp tension just right is absolutely necessary in order to get it to function properly.

  20. #20
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    I have two Giant Contact SL's in service for our winter-use fatbikes. No change in performance noticeable from +20*f down to -20*f.

    Haven't had them in colder temps than that, yet. We use different bikes (on different trails) when temps are much warmer than +20*f.

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