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Frame size question for JonC

5 posts from 4 voices
  • Started 1 year ago by Cusco
  • Latest reply from Cusco

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  1. Cusco
    Member

    Jon,

    I purchased a new MootoX RSL a few weeks ago. Just before Thanksgiving I posted several pictures of my new 29er on mtbr.com in the 29er forum (which I now somewhat regret). I have been surprised by the fact that there were a number of posts suggesting that the frame is too small based on the pictures which show I'm running a 110mm stem along with a 25mm Enve setback with the saddle close to the maximum aft position (there is ~ 10mm of flat saddle rail left before the saddle would be pushed back as far as it can go). I know that there is a danger in listnening to internet opinions but there are certainly some folks on that board who are knowledgeable and suggest the frame is too small. Not trying to read too much into the responses but it's a bit concerning that I may have too small a frame given the considerable $'s spent. Was hoping you could opine on the matter. Just so you have a general sense I am ~ 5'9" tall / 33.5" inseam and the frame is a 2012 17" RSL.

    The link is a s follows:

    http://forums.mtbr.com/29er-bikes/my-moots-29er-rocketship-753020.html

    Posted 1 year ago #
  2. johnny5
    Member

    I'm 5' 9 3/4" tall with a 33.75" inseam.

    I am currently riding a 17" MootoX RSL with a 110mm stem and a Moots Cinchpost.

    I saw the photos and your seat is far back in the rails, though I've seen this for people who have really long femurs. Having a longer top tube won't necessarily shorten how far back your saddle needs to be. The seat tube angle affects that. So, not being able to see you to fit you to the bike I can't answer specifically that your bike is too small (and I don't speak for Moots). Also, from the photo, I can't tell whether or not your saddle is in the proper position for you.

    Posted 1 year ago #
  3. kalamath
    Member

    Cus,

    I'm 6 foot and typically ride large, or 18-19" frames. That being said, one of the most fun bikes in my garage is a 16" SS thats absolutely wrong (saddle JAMMED back and sky high) and absolutely fun, and I can ride it for hours on demanding trails with no problem. At 5'9" I really think you can be comfortable on a 17" RSL.

    After looking at the pics you posted on MTBR, your bike looks fine to me. Dont be so sensitive to the MTBR crowd. =)

    ps. waiting for y'all to reply to my email Moots!

    Nino
    2010 Ibis Mojo SL
    2005 Moots Compact
    Posted 1 year ago #
  4. JonC
    Administrator

    Cusco,
    Don't read too much into the internet experts....(other than me) Ha! But in all seriousness, stem length is the size that makes the reach correct...some take a 120, some a 100 and others are in-between....use the one that feels and fits you correct. Saddle position is based on the relationship between your seat angle, femur length and lower leg. Put it where it feels right and allows you to put the most power down comfortably.

    If you called me over the phone and just gave me your height and inseam and riding style, I'd say you are on the correct size.....the 18'' would be just a tad too big.

    My .2

    Thanks,

    Jon@Moots

    Posted 1 year ago #
  5. Cusco
    Member

    Guys - just wanted to thank you for your responses. I've pretty much concluded that I am on the right frame size and probably need to dial in the fit a bit but it is close as is. Want to drop the bar height a bit (they are currently essentially parallel with my saddle) but I'm running no spacers and flipping my 6 deg. stem may put the bar too low. I could also drop the front fork 10mm given I am running a external lower headset bearing for my tapered steerer. Also, can someone tell me how to measure my femor length and what length would be considered "long".

    Overall I love the bike / very happy with my purchase ... perhaps even more than more first XC race rig ... a quad butted Fat Chance Yo Eddy that sadly died several years ago of a rusted out seat tube. Don't have to worry about that issue reoccurring with this frame :)

    Thanks again!

    Posted 1 year ago #

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