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Discussion Starter · #1 ·
Getting ready to buy my first Mojo, but I'm a little unsure as to what size to get. I feel that I'm pretty much right on the line between the small and the medium since I'm 5'7" and don't want a bike that feels too small or too big. No bike shops around where I live have the Mojo, so I'm hoping that someone could give me a little help. In most bike brands I ride a small, the last bike I had was a Transition Covert V2, but looking at the geometry on Ibis' website their frames seem to run a little smaller than the covert (which I was pretty comfortable on). I'm a pretty aggressive trail rider so I want to be sure the bike will still feel nimble and comfortable.
 

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5'7" here. I am running a Medium with a short stem - 75mm. Feels great for me- not stretched out , able to shift weight back and forth with no issues and climb and descend with no issues at all.
 

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flow where ever you go
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I think you can go either way. The top tube difference isn't that great. I am between 5'7 and 5'8" and I run a small with 100mm stem and it is perfectly balanced and comfortable in all situations.
 

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definitely medium imo. i am 5'5.5" on medium. small would be too small. sizing was confirmed to me as well by Ibis Rep when I demoed the bike. I run a 70mm stem but could easily run a longer stem.
 

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It's the axle
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I'm 5'8" on a medium. A 120mm stem. But I run my seat forward of where most do.
 

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around 5'6.5" and i run a small with a 110mm stem and it feels great. with a smaller frame, if you are borderline, there is more you can do to fit it properly and also it is not just the height that matters and hence difficult to say one way or the other.
 

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I'm 5'7", with a relatively long torso. Ride a M and am happy with it. Had a pro bike fitting and asked the same question you are asking, and was told that a small would be too small.

Although I'd be surprised if you ended up best on anything but a medium, getting a really good fit for performance and comfort turns out to be a pretty subtle business, depending on much more than just height. Wrench Science has a calculator that can give you some more detailed estimates. They guarantee the fit based on their online method, for what it's worth. You might consider punching some numbers in there and seeing what it says, just for an extra confirmation.
 

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I'm 5'7" coming off a small Stumpjumper Pro.I think you correct, in that the perfect size Mojo SL is right in between a medium & small.My wife has a small & I ride a medium with 70mm stem.I think the small is to small & the only terrain I would prefer the small is black diamond downhilling.Go for the medium with a low rise bar min. 660mm wide.
 

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Discussion Starter · #9 ·
Sweet! Appreciate all the responses. I'm pretty sure that I'm going to go with the medium and run a 75mm stem or so, should keep the cockpit feeling tight and responsive.
 

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Def Medium. I cant stand bikes with lots of stack, lay back, and a long stem to accomodate a larger rider. Defeats the purpose of getting a 'flickable' smaller frame.
 

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DWlink Fanboy
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I'm not sure whether there is a "right" answer here. Here's what I'd take into consideration:
- how flickable you want the bike to be
- how your height is distributed
- your style of riding

The smaller bike is going to be more flickable and feel a bit more nimble, IMHO.

Is your height mostly in your legs, or do you have a longer torso? Longer torso would typically indicate that you'd go with the larger size.

The type of riding you are going to do is going to make a huge difference. That ended up being the deciding factor for me more than anything else. If you tend towards more technical riding, go with the smaller frame. Less technical, go with the bigger frame.

As a point of reference, I am 5'6" with short legs. I ride a custom fit road bike - 50cm seat tube, 54.5cm top tube, 73 degree seat angle. The fit and my form on the bike is perfect.

In contrast, on my small Mojo, I'm riding technical slow singletrack (New England rocks and roots). I started with a 100mm stem and have shifted to a 70mm stem, and added about 1cm of height to the stem during the switch. After the change, the bike feels much more maneuverable and has transformed completely. I've been running 685mm bars the whole time. Weight balance is such that a lot of times, if I dig my front wheel into an obstacle and stop, the rear of the bike will rotate, but I won't crash (happened just this weekend, in fact...) I never would have been able to get it dialed in properly with a medium sized frame.

However, for cross country, less technical riding, my setup sucks and I'd be better off with a medium. Your mileage may vary.

Albert
 

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Just want to pad my posts or lack of.

5'7" small with a 120mm stem in XC/AM configuration. 44mm stem for DH. No problems at all. I've been use to a smallerish frame with a longer stem (ie 110-120mm) scince 1990 (old school).

Good luck.
 

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Not trying to pass judgement, but everytime I hear somebody say they need a smaller bike to make it more "flickable" I can't help but think they don't have good bike handling skills. Smaller bikes are going to feel "sketchier" and like somebody said above, if you get a smaller bike and throw a long stem and push the seat way back, you're going backwards if you're looking for flickable.
 

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Haha.... one man's flicky is another man's sketchy...
What's the saying?... "One man's trash is another man's treasure".
and so the debate rages on...

In light of Ibis' nice low standover and not-too-long head tube, I'd think a medium would be nice for you, but 'tis true that it's a subtle art. This is the point at which a friendly Ibis dealer and a couple test rides make all the difference.
 

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I was on margin between medium and large and was steered by LBS and Ibis toward the med. Rode it relentlessly for two years and had an absolute blast, but eventually wanted to try shorter stem. So traded my med for a large...and now I love the bike even more.

Moral: If on the margin, you can't really go too far wrong, but bigger w/ shorter stem was better for me. The difference was less dramatic than I expected though. Longer wheel base makes it slightly less agile on tight switchbacks, but the added stability (from shorter stem/longer wheelbase) on the rough downhills more than makes up for that.

For what it's worth, here's an old post from Tom at Ibis from many moon ago about general recommended size ranges. Not sure if this is Ibis's official sizing stance nowadays, but it seems logical to me for a rule of thumb: http://forums.mtbr.com/showthread.php?p=2386693#poststop
 

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Same size as you

I went with a medium. I felt a little more comfortable than on the small. I had a small Tracer before. I test rode both sizes.
 

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Yody said:
Not trying to pass judgement, but everytime I hear somebody say they need a smaller bike to make it more "flickable" I can't help but think they don't have good bike handling skills. Smaller bikes are going to feel "sketchier" and like somebody said above, if you get a smaller bike and throw a long stem and push the seat way back, you're going backwards if you're looking for flickable.
Kinda agree with you here. I'm 5'7 and I ride a medium Specialized Enduro (with the E150 double crown forks). The enduro size medium is as long as an the Mojo in size large. Yet, i'm able still able to flick and tail whip the Enduro more than some TALLER guys than me riding a medium Mojo. It does require more effort to flick a longer wheelbase bike, but I'd say if you could flick a small, then you could flick a medium with about 10% more effort. I've seen some kids who are about 5'2 riding adult MTB size small and they would do all sort of tricks that I can't do on my bike!
 

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T.W.O.
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Both should fit you well, depending on your riding style. I have both small and med. I'm 5'7" no stand over problem at all. Small is more flickable and med is more stable. Both fit me just fine.

though, I feel that it's much easier to hold manual on the small than med both size are quite easier to loft to front wheel.
 
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