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Thread: Trek Cobia

  1. #1
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    Trek Cobia

    Any photos of your Cobia are accepted. If no other person has a Cobia besides me, I would be surprised.
    Here is mine.
    Attached Thumbnails Attached Thumbnails Trek Cobia-10093.jpg  

    Trek Cobia-10091.jpg  

    Trek Cobia-9930.jpg  

    Trek Cobia-9929.jpg  

    Trek Cobia-9928.jpg  

    Trek Cobia-kjh_2420.jpg  


  2. #2
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    I'll play.

    Trek Cobia-oklahoma-city-20130210-00055.jpg

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    1 1/2 weeks old.

    Only ridden once for an hour. This rain every time I have a day off has to stop!

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    Here's Mine. I've had it since July-ish and the only thing left stock is the saddle and seatpost.

    Trek Cobia-img5110j.jpg

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    Noticed the Stan Arch wheels, I was considering those or maybe the crest for mine. Do you have any thoughts? Pretty noticable difference?

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    Quote Originally Posted by BlueCollarBulldog View Post
    Noticed the Stan Arch wheels, I was considering those or maybe the crest for mine. Do you have any thoughts? Pretty noticable difference?
    The biggest difference was the weight. Between the wheels and converting to tubeless I have saved over a pound and a half in rotational weight. They roll so much better than the stock wheels.

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    I have a 2013 cobia. I upgraded to xt brakes and shifters. Bbg bash guard. Slk carbon handlebar. Bontrager xxx seatpost. Reba fork, and wtb volt seat. Tried posting pics but it said file error or something. Any help getting pics up would be appreciated.

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    Got it
    Attached Thumbnails Attached Thumbnails Trek Cobia-image.jpg  

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    Trek Cobia-image.jpg  


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    Just picked one up last night. Rode it to work today and loved it. Haven't ridden a MTB since I was a kid, and boy is my rear end sore! But I can't wait to hit some trails out in the desert!

    Can't post pictures until I hit 10 posts but I got the Blue/Black/White version.

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    Quote Originally Posted by Gsean627 View Post
    I have a 2013 cobia. I upgraded to xt brakes and shifters. Bbg bash guard. Slk carbon handlebar. Bontrager xxx seatpost. Reba fork, and wtb volt seat. Tried posting pics but it said file error or something. Any help getting pics up would be appreciated.
    I just picked up a new 13 Cobia today. What did those upgrades cost you?

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    I bought a 4 month old xcal on ebay with all of the components for 1175. I put my components on it and sold it for 925. So 250.

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    Trek Cobia

    Quote Originally Posted by Gsean627 View Post
    I have a 2013 cobia. I upgraded to xt brakes and shifters. Bbg bash guard. Slk carbon handlebar. Bontrager xxx seatpost. Reba fork, and wtb volt seat. Tried posting pics but it said file error or something. Any help getting pics up would be appreciated.
    On the XT brake upgrade did you keep the original rotors? Or upgrade those too? I just got a new Cobia as well and the brakes on it feel horrible.

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    Actually I don't know. The wheels I got the upgraded wheels from the xcal also. I'm not sure if the rotors were stock or not. The difference between xt and elixir 1 is night and day. The brakes and the running tubeless are the biggest difference in my bike from then and now. I hated the original brakes as well.

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    So i just got a cobia - and am reading you about the upgrades.. Where did you start Gsean627.. what was the best first upgrade you would recommend?

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    Honestly, brakes and going tubeless. Shimano brakes are much higher quality IMO. Also the extra traction from running lower pressures has been a big bonus. Either one of those you will notice an instant change. The xt derailleurs are nice but not a big enough difference to warrant the $.

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    Quote Originally Posted by joewat64 View Post
    On the XT brake upgrade did you keep the original rotors? Or upgrade those too? I just got a new Cobia as well and the brakes on it feel horrible.
    These are original rotors. Not xt.

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    thanks gsean627 - yah i was out today and my brakes are starting to make noise... so i might go look... so you have a particular model that you like...

    thanks.

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    Quote Originally Posted by patricktrekrider82 View Post
    thanks gsean627 - yah i was out today and my brakes are starting to make noise... so i might go look... so you have a particular model that you like...

    thanks.
    I would take some rubbing alcohol and wipe down the rotors real good to take care of noise. When my breaks get dirty they tend to squawk as well. I have XT's on my bike but I have had lower grade shimano's that are worlds better than the elixir 1's.

  19. #19
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    To me, any shimano brakes are better than an Avid Elixir 1. I have ridden bikes with Deore brakes, and those are so much more efficient at stopping.
    In the future I plan to upgrade:
    Fork: FOX Float 32 120
    R. Derailleur: Shimano SLX 10 spd
    Brakes: Shimano SLX (front with 180 mm rotor)
    Shifters: Shimano Deore 10 spd Rapidfire Plus
    Rims: Bontrager Duster 29

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    i plan on starting my upgrades soon!! I love the Cobia but i see alot of improvements i can make to it... its overall a nice ride... and handles nice and rides well - but its time to give it a little love and some new parts..

    a buddy told me i should go get medal pedals, without clips... he told me the medal will last longer, but he feels i am not ready to be clipped in.. he wants me to get better and understand the bike and ride more... - but cant stand to see the plastic pedals.. haha

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    i guess my real issue is - when i look at parts knowing what is truely a worthy upgrade and mostly what will fit on my bike.

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    Trek Cobia-image.jpg

    Here's my recently acquired Cobia. Bought it mainly to go out with the kids rather than use my main steed (Trek Rumblefish Pro). I've added some DMR vault pedals and a Fizik Gobi XM saddle since this photo.

    I have to say that I'm very pleasantly surprised by the Cobia. What a comfortable bike, I love it!

  23. #23
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    love all the Cobia's here and the ones we have yet to see!

    here's mine staged by my apartment door ready to go. she's my first 29'er. i've only upgraded a few things--gonna ride her stock for a bit to see what i really want to change later. her only major action seen was at the last Sea Otter Classic. all other action has been local trails. as you all know...shes a lot of fun.
    Trek Cobia-my-trek-cobia.jpg

    near the top of Kenneth Hahn Park (a bunch of lovely hidden trails in the midst of an urban city, Culver City, CA)
    Trek Cobia-20130120_122943.jpg

    this last shot i pulled from a GoPro run at Kenneth Hahn Park.
    Trek Cobia-kennethhahn-1-.jpg

  24. #24
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    Here are the latest pics of my Cobia:

    Trek Cobia-kjh_0731.jpg

    Trek Cobia-kjh_0729.jpg

    Trek Cobia-kjh_0725.jpg

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    Bought as a back-up bike while my Rumblefish gets rebuilt rear shock. Nice bike, glad I got it.
    Attached Thumbnails Attached Thumbnails Trek Cobia-p7060010c.jpg  

    2010 Trek Rumblefish
    2013 Trek Cobia

  26. #26
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    I need to take pics of my Cobia and post them up soon, as I put a 180mm Shimano XT rotor on the front.

    Here is what I plan to upgrade:
    Fork: Fox Float 32 120
    Rear Derailleur: Shimano XT
    Crank: Shimano XT
    Shifters: Shimano XT
    Tires: Schwalbe Hans Dampf 2.35 rear, Schwalbe Nobby Nic 2.25 front
    Brakes: Shimano XT 180 rear, 200 front?
    Wheels: Shimano XT hubs, DT Swiss XR 400 rims

  27. #27
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    Here are some pics of my Cobia with a 180mm XT front rotor.
    Trek Cobia-kjh_1993.jpgTrek Cobia-kjh_1982.jpg

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    2012 Cobia - Did I make a mistake?

    Hello all, I just purchased a new 2012 Cobia from the Trek store. I have only about 25 miles on it, and it has been in for service 3 times. First was the front derailleur came apart and scratched the bottom bracket, next the front brake failed and this time the rear derailleur brake in half, scratch the frame badly and went into the spokes. Mind you I have only rode on city streets so far. Wondering what I should do, Trek said they will replace and upgrade me to X9 set up, the new one with a clutch, including shifters, and do the best to match my frame. Do you think the upgrade is good? What would you do if the touch up is not good?
    Attached Thumbnails Attached Thumbnails Trek Cobia-20130811_114948%5B2%5D.jpg  

    Trek Cobia-20130811_012927%5B1%5D.jpg  

    Trek Cobia-20130811_114938%5B1%5D.jpg  

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  29. #29
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    Quote Originally Posted by Fowler View Post
    Hello all, I just purchased a new 2012 Cobia from the Trek store. I have only about 25 miles on it, and it has been in for service 3 times. First was the front derailleur came apart and scratched the bottom bracket, next the front brake failed and this time the rear derailleur brake in half, scratch the frame badly and went into the spokes. Mind you I have only rode on city streets so far. Wondering what I should do, Trek said they will replace and upgrade me to X9 set up, the new one with a clutch, including shifters, and do the best to match my frame. Do you think the upgrade is good? What would you do if the touch up is not good?
    I would upgrade to Shimano, with brakes and drivetrain.
    Shimano is the best bicycle component brand around, and I am planning on using Shimano for my 2013 Cobia.

  30. #30
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    Dude,
    Give us the rest of the story.. Cross chaining, grinding... this isn't a normal occurrence for a new bike. I've only seen damage like this on a friend's bike. He lent it to a guy who had no concept of shifting gears.
    2010 Trek Rumblefish
    2013 Trek Cobia

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    I was just riding on the street, no sticks nothing. I had just turned around and started to pedal I was on the outside ring upfront and in a middle gear in the rear. stood up and took off head a clicking then dead stop. Been riding for 30 plus years, had a Walmart Mongoose Black Comb prior to this for a few years. The part that pisses me off the most is the frame damage, had I done it off road then it wouldn't bother me.

  32. #32
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    Quote Originally Posted by Fowler View Post
    I was just riding on the street, no sticks nothing. I had just turned around and started to pedal I was on the outside ring upfront and in a middle gear in the rear. stood up and took off head a clicking then dead stop. Been riding for 30 plus years, had a Walmart Mongoose Black Comb prior to this for a few years. The part that pisses me off the most is the frame damage, had I done it off road then it wouldn't bother me.
    You might have tried shifting while standing up and pedaling. That may have put too much stress on the rear derailleur, causing it to snap at the dropout.
    And yes, I agree with your last sentence. That is why I have a separate bike for the road, so I can scratch my mtb on the mountain.

  33. #33
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    Hey! New to the forum, so thought I would post my setup here.

    I basically wanted to run 1x10, so ditched the front derailleur and gear mech, all the rings, and placed with a raceface 34t narrow-wide ring, and a bash ring on the original crank.

    I pretty quickly snapped the x5 long derailleur on the local trails, so switched to an x9 medium, and x9 shifter - its far smoother than the x5 setup I had before.

    I have rode on the brakes for around 2months, and after a long bedding in period the stock avid's are working pretty well! I may change the crank, wheelset and brakes after winter

    Trek Cobia-1011450_10153119829590611_829146069_n.jpg

  34. #34
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    Quote Originally Posted by James Wright View Post
    Hey! New to the forum, so thought I would post my setup here.

    I basically wanted to run 1x10, so ditched the front derailleur and gear mech, all the rings, and placed with a raceface 34t narrow-wide ring, and a bash ring on the original crank.

    I pretty quickly snapped the x5 long derailleur on the local trails, so switched to an x9 medium, and x9 shifter - its far smoother than the x5 setup I had before.

    I have rode on the brakes for around 2months, and after a long bedding in period the stock avid's are working pretty well! I may change the crank, wheelset and brakes after winter

    Click image for larger version. 

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    I will convert to 1x10, but with a Shimano XT read derailleur, Shimano Zee shifters, and a 36t Zee crankset.

  35. #35
    jmn
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    Ah nice idea! I found the 34t a nice difference from the 33t original middle ring.

    Update on how the 36t works! I want to change the crank to the race face atlas, but I am not sure. I have some faith in race face - my Cobia has the 90mm race face xc evolve stem also!

  36. #36
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    Quote Originally Posted by James Wright View Post
    Ah nice idea! I found the 34t a nice difference from the 33t original middle ring.

    Update on how the 36t works! I want to change the crank to the race face atlas, but I am not sure. I have some faith in race face - my Cobia has the 90mm race face xc evolve stem also!
    I will comment on the 36t when I get it late next month. I need to ride some more on the middle ring to see if I can stay in the middle gear (so far I have), just for practice.
    Do you think that the single is better than the triple?

  37. #37
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    Quote Originally Posted by CannondaleF9 View Post
    I will comment on the 36t when I get it late next month. I need to ride some more on the middle ring to see if I can stay in the middle gear (so far I have), just for practice.
    Do you think that the single is better than the triple?
    The single is awesome! The most noticeable difference is the noise no noise at all with a single.

    I stayed with the middle ring for 1-2 months, and it seems like a great idea - and not one I have regretted at all! The narrow wide ring really does not drop the chain at all, and although on up hills it can seem a little tough to begin with, without the small ring, it makes riding so much easier

  38. #38
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    Now that there is no Cobia for 2014, this thread can also be used for the Trek X-Cal 9 and Superfly 5.

    -Update on my Cobia. I don't know if I will like the 36T single, and if I do not, then I will buy a 34T.
    Can a 36T bash guard be used on a 34T chainring?

  39. #39
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    Quote Originally Posted by jmn View Post
    The single is awesome! The most noticeable difference is the noise no noise at all with a single.

    I stayed with the middle ring for 1-2 months, and it seems like a great idea - and not one I have regretted at all! The narrow wide ring really does not drop the chain at all, and although on up hills it can seem a little tough to begin with, without the small ring, it makes riding so much easier
    So here's the update. I decided to not try a 36T, and while I kept the crank, I used a 34T narrowwide chainring. It feels a little harder on the climbs, but the Shimano Deore XT shadow plus makes everything feel much better than before.

  40. #40
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    Here is mine, newly modded.
    Trek Cobia-kjh_3728.jpgTrek Cobia-kjh_3718.jpgTrek Cobia-kjh_3715.jpgTrek Cobia-kjh_3713.jpgTrek Cobia-kjh_3712.jpgTrek Cobia-kjh_3729.jpg

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    Bit of a perspective pic size-wise, but here is my 2012 when it was new last year. Shimano Saint pedals, ODI Ruffian lockons, and CF headset spacers for a little bling(I actually love these-bike looked totally different to me after).

    Was getting chain slap, and dropping the chain some, so...


    Eventually it'll get better tires, and maybe a X9 2x10 kit, but it's doing great as-is.

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    If I replace the standard crank on my 2013 Cobia to an XT one, will I need to change the BB aswell?

  43. #43
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    Quote Originally Posted by grundy1973 View Post
    If I replace the standard crank on my 2013 Cobia to an XT one, will I need to change the BB aswell?
    If you buy a complete crankset, then it will come with a new bottom bracket (the Zee came with one). I think the XT is the same as the Zee, so it should be similar to my experience. If you are overwhelmed and/or lack the proper tools, then just bring it to your LBS.

  44. #44
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    My Cobia's next probable upgrades:
    Shimano SLX brakes
    Raceface Turbine 720mm handlebar
    Raceface Turbine seatpost
    Schwalbe Hans Dampf 2.35

    More to come in the future:
    DT Swiss wheelsets
    RockShox Reba fork

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    Quote Originally Posted by CannondaleF9 View Post
    If you buy a complete crankset, then it will come with a new bottom bracket (the Zee came with one). I think the XT is the same as the Zee, so it should be similar to my experience. If you are overwhelmed and/or lack the proper tools, then just bring it to your LBS.
    I thought the cobia had a press fit bb but looking at your pic it's got the external bb caps on it. Did it fit ok?

  46. #46
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    Quote Originally Posted by grundy1973 View Post
    I thought the cobia had a press fit bb but looking at your pic it's got the external bb caps on it. Did it fit ok?
    The Cobia came with a press-fit bearing, but the Zee came with external bearings. They fit fine, and look great.

  47. #47
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    2013 Cobia with upgrades:
    Ritchey Pro Bar Ends, Cannondale D4 lock on grips, Cannondale bike computer, Zee 1x10 shifters, Shimano XT Deore brakes, Shimano XT Deore Shadow Plus rear derailleur, Raceface Respond 60mm stem, Schwalbe Nobby Nic 2.25, Schwalbe Hans Dampf 2.35 Trailstar, Shimano Zee crank, Raceface Narrow Wide 34t chainring, Raceface 36T bashguard, Raceface Evolve seatpost, Cannondale seat, Shimano Zee 203mm front rotor, Shimano XT 180mm rear rotor.
    Trek Cobia-kjh_9876.jpgTrek Cobia-kjh_9870.jpgTrek Cobia-kjh_9869.jpgTrek Cobia-kjh_9868.jpgTrek Cobia-kjh_9867.jpgTrek Cobia-kjh_9866.jpgTrek Cobia-kjh_9862.jpgTrek Cobia-kjh_9858.jpgTrek Cobia-kjh_9852.jpgTrek Cobia-kjh_9850.jpg

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    I'm qurious as to why you've got the hans dampf trail star or the rear and the nobby nic on the front. The other way round would work better wouldn't it? Less drag at the back and more grip up front

  49. #49
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    Quote Originally Posted by grundy1973 View Post
    I'm qurious as to why you've got the hans dampf trail star or the rear and the nobby nic on the front. The other way round would work better wouldn't it? Less drag at the back and more grip up front
    I might switch them around soon, but at first my thoughts were to have more traction in the back, so while pedaling through the thick clay/mud on my property, the spacing between the knobs wouldn't fill up as fast, and it would float better over mud than the NN.

  50. #50
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    Quote Originally Posted by CannondaleF9 View Post
    The Cobia came with a press-fit bearing, but the Zee came with external bearings. They fit fine, and look great.
    When you installed the shimano BB. Did the frame have threads for the external BB cups?

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