Tmars dropper post?

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  • Tmars dropper post?
  • matt1986
    Member

    Has anyone used one of these? They seem a great price at £69.99?

    Premier Icon brant
    Subscriber

    I had one that was interchangeable with Gravity Dropper parts, but suffered from bushings that seized when wet, and poor sealing.

    This was about three years ago though.

    matt1986
    Member

    Wouldn’t you bother then? I’d have to get a shim as my seat post is 30.9

    Premier Icon kimbers
    Subscriber

    crc stock loads of gd parts, ive got a GD, but im considering this for my budget build!

    nutsnvolks
    Member

    there are 30.9 posts available….

    http://www.evomtb.co.uk/xlc-pro-remote-controlled-adjustable-bike-seat-post-309mm-blackblue

    i am fairly sure that gravity dropper do a 30.9 version dont they?

    matt1986
    Member

    That’s £142 though which is a massive differance when I can get a shim for £5

    thepodge
    Member

    I have that XCL one and paid a lot less than that for it.

    Its good but the lever doesn’t really pull enough cable and its very susceptible to sticky cables

    nutsnvolks
    Member

    yes, i have/had the same problem with my specialized command post, i did manage to sort it, funnily enough when i changed a kinked xtr outer cable for a cheap clarkes one from halfrauds!!! think it must be a slightly bigger bore, i just make sure its well oiled and so far its been ok, however if i forget to clean the bike (tuttut) then it takes a bit of fettling! i think the best bet is prob a reverb, however whilst mine is still ok it will have to wait!

    Matt, yes totally understand, didnt really think of price, thought issue was post diameter, my fault for not reading properly!

    darkslider
    Member

    I’ve heard talks that they’re the same as a few other types, Ice Lift V8 and possibly the Forca range? I too have a 30.9 seatpost so I’m thinking of of getting one of these with a decent length shim.

    stumpyjumper
    Member

    Just fitted one to my winter hard tail. I took it apart, greased everything as there was none in it and fitted it. It’s ace. 3 positions. Works,looks and feels just like a gd. After fixing several dodgy reverbs il take this over one.

    shanta
    Member

    What stores are selling TMARS as i have only found em on ebay…

    Premier Icon StuE
    Subscriber

    You can get them from

    Home

    Search forum for ice V8 post, loads of discussion there and some recent reviews of the Tmars.

    hora
    Member

    No mention of warranty etc (or on the ebay ad). Which is worrying as its an unknown commodity and theres no reassuring blurb (or even basic info).

    IHN
    Member

    But it’s only(!) £85, so worth a gamble anyway?

    That’s what I reckoned, so bought one last week (one of the £85 ‘brand new 2013 model’ ones, with the ‘black box’ pin release wotsit on the post)

    Spent Saturday stripping it down and greasing all the moving parts (including the gubbins in the black box). It all worked pretty well on a ride up and down the road, but (muddy) time will tell.

    hora
    Member

    Can’t it be stripped down and greased before it gets to you? If I opened it it’d be carnage.

    IHN
    Member

    Well, yeah, it could, but I guess that’s reflected in the price. Plus, it is greased when it comes, I was interested in how it works mainly but also figured that more grease couldn’t hurt.

    The black box was dry inside though, so that’s one area where I reckon there should be some grease/lube on the moving parts (which mine now has)

    It’s actually a really simple mechanism, there’s not a lot to take apart (or go wrong)

    IHN, what’s this black box you speak of?

    IHN
    Member

    The one the cable goes into on the back of the post on the ‘latest’ model:

    seavers
    Member

    I had a variant of one of these, bought new for £78. The post its self was not bad but the lever mechanism is awful. Impossible to use quickly and I found the post needed an extra tug to get it to click back into the fully extended position. By that I mean the spring didn’t have enough power to fully push the seat post back up.

    I got rid. It might have been better with a decent cable, mine seemed to stretch and I mean on a ride not over time!

    IHN
    Member

    I’ve got to say that my experience differs totally, lever works well, post works well, very, very happy with my purchase.

    Nowt like STW for conflicting advice 🙂

    seavers
    Member

    I’ve got to say that my experience differs totally, lever works well, post works well, very, very happy with my purchase.

    Nowt like STW for conflicting advice

    It could also be that there are many variants of this dropper post made by different companies. I am more than willing to accept user error but did use it for a week in Scotland so gave it a good try. The guy I got it from was UK based and was working with his Chinese supplier on improvements. In time it might be a great buy just not there yet from my experience.

    Edit: Mine was from here http://www.bigmassive.co.uk/

    Ah, I thought I had the 2013 version! I bought this one:
    http://www.ebay.co.uk/itm/130790415484?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

    The cable in mine goes through a nasty 90 deg bend, I wrote about it here:
    http://singletrackworld.com/forum/topic/tmars-dropper-cable-replacement

    dantsw13
    Member

    I “think” that the cable outer used on this post is helical, so suffers from compression. It took a month or so for the cable to settle down in mine. It is very sensitive to get just the right lever throw, without the post detaching from its setting undemanded.

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