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  1. #1
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    5'11 and a 17.5 in frame?

    Hi guys- just got back from my LBS and tried two different units. The first one was a Trek Cobia in a 19 in frame based on the salespersons recommendation. I felt very stretched out on the bike (very forward) nice ride tho!

    Than I rode the 17.5 in frame Mamba and I just felt more comfortable on this size. I'm curious if its a bad idea to go with the 17.5 er considering I'm 5'11 and man up to the larger unit?

  2. #2
    Wēk Ss
    Reputation: IAmHolland's Avatar
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    17.5 doesn't mean a whole lot, FWIW. You need to concern yourself more with reach and horizontal ETT. My bikes are any where from 17 inches to 19 inches. I'm 5'11" as well.

  3. #3
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    I am 5'11 and my bike is a 17.5 inch frame. I tried a 19, but it was to big. I think it depends on the bike. Some are 17.5 for medium, some companies use 18. Just make sure you are comfortable.

  4. #4
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    I'm 5'11" and my preferred 29er size is 17.5" with a 23.5" ett. I currently have two 29ers in this size. My previous 29er was a 19 and way stretched with no stand over. I'd rather it be a little small versus too big.
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  5. #5
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    I'm 5'11 and ride a 17.5 x-cal. The frame is a bit on the small side for me, and I will eventually switch out to a longer stem, but then I have monkey arms. Like others have said, what fits one person will not fit another. If the 17.5 felt good, then roll with it.

  6. #6
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    sounds about right. im 6'2 and and the 21" is a bit stretched. personally i liked it over the 19. i did move the bars up and in a bit.

    if you like the 17 over the 19 then get the 17.

  7. #7
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    Helpful info

    Thanks.

  8. #8
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    i'll repeat what others have said just because i'm bored. 17.5" does seem a little small for someone who is 5'11 but it depends on your body. for example, my wife is 5'6 and felt more comfortable on 17.5" trek xcal frame compared to a smaller frame.

    my advice is right it enough (if you haven't already) to really make sure it fits better.

    regardless, enjoy!
    ez
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  9. #9
    CSC
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    It also depends on the type of riding you will be doing.

    I'm ~6', and have a 21" Spec Rockhopper. XC bikes will stretch you out, XCT/AM will bring you in, and DH/FR will, well, with 8+ inches of travel, whatever space is left is what you get, haha (tend to bring you closer, too).

    Body type matters too, though. I have a long torso, so the bigger frame works for me. Go with what is comfortable. The bike is as good as a garage coat-hanger if you are not comfortable on it!

  10. #10
    undercover brother
    Reputation: tangaroo's Avatar
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    FWIW, I'm 5'11" and ride a medium (18") frame. Fits me perfect, but like a lot of people have said it's all about how you feel on the individual bike. Some will fit completely different depending on the frame style and riding style.

  11. #11
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    Definitely depends on your body type more then just your height. Different bikes have different geometries too obviously. I'm only 5'8, When I test rood a Trek 3700 the 18 inch was perfect. When I test rode the Marlin the 17. was stretching me to full extension. I ended up buying a 15.5. Other brands were totally different.

    Spend enough time testing it to find out what feels best. Try and ride the same bike in different sizes

  12. #12
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    Well, I've got pretty long legs and a rather short torso. Hence why I felt SO stretched out on the 19 in Cobia. I think with the 17.5 I'd feel more in control and would be able to throw the bike around more.

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