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Thread: Sizing question

  1. #1
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    Sizing question

    Even though I am considering a Mojo HD, they are not out yet, and I am wondering whether I would ride a large or an extra large. I am about 6' 1" with a 34" inseam and run a lot of post for climbing and drop a lot of post for decending. I would probably use some kind of ajustable seatpost.

    The TT seems to be a touch smaller on the regular Mojo. So just wondering what the six foot Mojo ridering are on and where the boundry for going to the extra large is.

    Thanks!!

  2. #2
    boardguru
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    I am 6' with a 34" inseam also, and ride a large Mojo. I ordered a large HD that will arrive soon. Stem choices for me are 90-100mm. Hope this helps.

  3. #3
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    Thanks. Are you planning on running a stem that long on the HD? I tend to prefer shorter stems. Let me know how it fits when you get it!

  4. #4
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    I'm 6'2" w/ a 34" inseam on an xl, 80mm stem, I ride on both adjustable and fixed post depending on where I'm riding. I'm thinking about gitting a set back post when I ride fixed, feeling a little cramped. hope this helps.

  5. #5
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    Quote Originally Posted by scepticshock
    Thanks. Are you planning on running a stem that long on the HD? I tend to prefer shorter stems. Let me know how it fits when you get it!
    I'll try it with my current stem, 100mm, then see if I need to go shorter, maybe 80 or 90 mm.

  6. #6
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    Thank. Still hoping to hear from some more 6 foot guys.

    The only size I tested was an XL. Bike shop guys tend to think I am between sizes, and for some reason tend to size up. With a 21" seat tube i just have concerns about dropping the seat.

  7. #7
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    I'm 6' 2"" and would never consider riding a large, I had the same questions and the second I sat on the XL I realize there was no way I could fit on a Large. If you like running a shorter stem going with the XL will be a must. Ibis Mojo's seem to be a bit smaller built than other similar style bikes. Wish they'd add about 10mm to the TT so I could run a 50mm stem comfortably, right now I'm on a 70 and I don't think I could go any shorter without it hindering my riding, its already pretty close.

  8. #8
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    Ditto what Yody said. I'm the same height and running an XL with a 70mm stem. When I first built it I was thinking the large might have been a better choice since I felt too stretched out. I dropped to a 70mm stem and the bike is perfect now, not to mention how much better it handles with the shorter stem. On a large I've be running a 100 stem.

    The high seat tube does pose the only problem for me since I use a Gravity Dropper seatpost. The post has a 4" drop. When mounted at my riding height, there is about an additional 1/4" I could slide the post down. Last weekend I did a DH race, and actually removed the GD and put in a fixed post so I could lower the seat farther that 4 1/4". If you use a Joplin, you'll have more flexibility with how far you can drop the seat.
    Those who know, ride a Mojo AND a Mojo HD.
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    Ok, whatever, cold water on my bike boner right there.

  9. #9
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    Quote Originally Posted by boardguru
    I ordered a large HD that will arrive soon. Stem choices for me are 90-100mm.
    Even if you don't know it yet you REALLY don't want to put a stem over 70mm on the HD.
    Keep the Country country.

  10. #10
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    I had a similar dilemma, as I was really between sizes...I am 5'10, with 30" inseam and the large felt really big to me. In fact, one dealer told me that M was my size, and another told me Large. The large seemed like a big bike when I first got on it, and there is very little standover on the Mojos to begin with, but having had it out on several rides now, I am stoked I went for the larger size....I know I'm not your size, and I'm riding an SL, but thought I would chime in, as I was really having trouble deciding as well.

  11. #11
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    Thanks for the feed back. Overall the X-large felt pretty good. I think I will have to look at a Joplin, as the gravity dropper won't let me drop the seat as low as I want

  12. #12
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    Quote Originally Posted by scepticshock
    Overall the X-large felt pretty good. I think I will have to look at a Joplin, as the gravity dropper won't let me drop the seat as low as I want
    Would a 5" KSi950 work? I'm 6'2" and prefer the 5" drop to the Joplin's 3" or 4".
    Keep the Country country.

  13. #13
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    I am considering a KS post now or even a RASE. 4" of drop just isn't enough to consider moving to a Joplin for.

    Looking forward to the demo ride.

  14. #14
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    Remember the HD wheelbase is over 1 inch longer than the same size standard Mojo and the ETT is a quarter inch longer too, because of the taller and slacker fork, and longer chainstays.

    I'm no expert on bigger travel bikes but when I've demoed 6+ inch bikes most factory techs put me very comfortably on a size smaller from my Large size Mojo's 23.6 inch ETT, to a more common 23 inch ETT Medium size on the bigger travel bike. I'm 6'1" w/ 32" inseam. I test rode a Large HD and definitely would not go to XL. The Large felt too big compared to other 6+ inch bikes I've demoed and liked. Compared to the Large standard Mojo, the Medium HD has a 23.1 inch ETT which is a 1/2 inch shorter ETT, but the wheelbase is 1/4 inch longer.

    The HD will want less reach than a shorter travel bike to handle increased dive from increased travel and a slacker fork angle and higher speeds.

    I'll post a question in the AM forum about this topic, about going a size smaller when going to a slack and longer travel bike.
    Last edited by derby; 04-09-2010 at 07:41 PM.

  15. #15
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    Having the longer 34" inseam just seems to make it that much harder to fit. Especially now that most companies spec a 19"seatpost for the large. I have owned a 23" ETT bike and could never get it to fit right.

  16. #16
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    I've had good luck looking at reach numbers for both MTB and road bikes; however, Ibis does not subscribe to this measurement philosophy...
    Based on published numbers I'm going to guess that the HD will fit a bit smaller than the same sized Mojo.

    I'm curious to see how the HD feels compared to a Mojo w/36 as geo numbers are pretty close (Mojo might be .5* steeper).

    As far as sizing goes, I would buy the size that fits you and your intended use. Not what someone tells you that you should be riding.

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