Moxie Mx3 sizing

Hey! I'm 180 and ride the longer moxie 29er with a 140 mm fork - pyrenees, both france and spain. I went from a medium kingdom vendetta 27.5 with 150 mm forks which always felt too short - I think I always went for smaller, more playful bikes. This is much more stretched but feels better for both ups and downs and although less playful is better in every other way, except weight! Stable and planted on the downs, and not so wandery on the up - just need to be more active. Sometimes struggles on tight switchbacks but I don't mind that so much as that might be me more than the bike!

Hope this helps - enjoy!

I went with Long as a proportionally short legged 1.75m. The Longer reach would probably be fine for me, but was worried it might be too much as a 29er.
I mullet built my Long in the end due to parts availability and can't say I find it cramped or limiting.

I'm 180cm and on a long with 150mm forks. Also have relatively short legs.
I'm sure a longer would have been fine as it doesn't feel especially long when sat down. I wanted something playful and find that it climbs well and feels great when stood up.
Where are you? I expect there will be a Moxie somewhere nearish you that you can sling a leg over.

My jeans length is 34" so not too short-legged. Compared with my 2018 Whyte 909, unsurprisingly the Long is a bit bigger but with shorter effective top tube, given it's got a steeper seat tube. So I would assume I'd be closer to the bars seated (which is fine as long as my knees aren't too close to the bars) and it would feel similar to the Whyte downhill but just a bit more stable. In comparison, the Longer would feel about the same as the Whyte climbing but downhill I'd be a couple more inches stretched out and my position would be a bit more centred on the bike. The quandary of being between frame sizes! I'm guessing I probably wouldn't regret either size from coming off a 2018 frame.

I'm 179cm tall and on a long Moxie which feels a really great fit. I've got quite long legs, always 34" jeans (I think if you have shorter legs for a given height you need longer reach but probably a shorter seat tube and lower rise bars). I'm running a 160mm fork, 50mm stem and 40mm rise bars.

Regarding the geometry, it's quoted unsagged with a 140mm fork (552mm A2C). With that fork and my saddle height of ~750mm Alan at Pipedream said the virtual seat tube angle would be 75.25 deg. My 160mm fork slackens things off and shortens the reach, raises stack and slightly increases ETT - but then the sag when you get on the bike steepens the angles and lengthens the reach more, etc.

Which size 909 are you on? What fork and wheels and are they going on the Moxie?

Which size 909 are you on? What fork and wheels and are they going on the Moxie?

I'm on a large with 27.5+ wheels and a 130mm Fox 34. The wheels will be going on the Moxie but I'll be fitting a 150mm Pike with 42mm offset. I will build up a set of 29ers in the future too, to try mullet and full-29 on it. I think the other thing to consider is I've just turned 50 and the riding I do now - and will continue to do - is steady 2-3 hour winch and plummet rides. So I won't be using it for fast racing. @chiefgrooveguru, do you ever think a Longer might suit you more in certain riding situations?

I'm 181cm tall with long arms and have a barely used long frame sat in the garage. I built it up for a few rides but took it apart again as I found the reach too much. I tend to hop around a lot/lift the front wheel over stuff when I ride and it just felt like more work than would be fun. I think I just like short bikes. I've been meaning to build it back up and try again for the last year but just haven't had the inclination.

It felt great on faster corners and at high speeds though.

Im 190cm tall and i run a mk3 longer, its my only bike so used for everything thing. Im a bit like you just love the down but have to winch back to get them in eh. I run a 160mm Lyrik ultimate with a 210mm dropper, lovely bike!!

Our saddle height is probably very close (I think mine’s at 755mm now, BB centre to top of saddle) so I’m happy to measure my top centre of seat clamp to centre of steerer tube or centre of bars, if you want to see how the real world top tube length compares to your Whyte. The Moxie has a bend in the seat tube so it gets slacker and the top tube length longer the longer your legs are - whilst on your Whyte I think it’s a straight tube from the BB.

My other bike is a Levo with a similar build kit, same fork, etc. Similar geometry too, the Moxie just has the BB 20mm further back (20mm longer reach but 20mm shorter chainstays, same wheelbase).

I don’t think I’d want it longer - I actually spent a while debating longish vs long when ordering, despite their size chart.

@chiefgrooveguru, my saddle height is 750mm and my Whyte's seat tube centre to head tube centre is 640mm. Sitting on the bike this morning it struck me that moving any further back from my normal seated position starts to put strain on my lower back and moving more forward helps it. I've suffered from lower back muscle pain for years and years, so this might be something I need to bear in mind. I'll be running a 35mm stem and mid-rise Renthal bars.

"my Whyte’s seat tube centre to head tube centre is 640mm."

Is that top centre of seat tube, just below the saddle? And top centre of head tube? The minutiae make a big difference in fit. I shall measure mine tonight! It's such a great bike!

Ah i know my centre bb to saddle rails is 710mm but have to check the height to top of saddle, i do run it slightly nose tilted down and forward. I also run a 30mm stem with 15mm spacers under and a 30mm rise burgtec bar and 170mm cranks.

Is that top centre of seat tube, just below the saddle?

I measured centre of BB shell to top of saddle (in-line with post) and centre of seat tube to centre of head tube.

I run my saddle level and fairly central on the rails (perhaps a touch forward).

Is that top centre of seat tube, just below the saddle?

Sorry @chiefgrooveguru, mis-read that in my earlier post. 640mm is centre of the top of my seat tube (where it meets the seatpost) to centre of head tube.

"Sorry @chiefgrooveguru, mis-read that in my earlier post. 640mm is centre of the top of my seat tube (where it meets the seatpost) to centre of head tube."

Aha! To compare sizing you need the distance from the top of the seat post or middle of saddle or seat clamp to a reference point at a similar height at the front - like the centre of the bars or top centre of the steerer tube. The Moxie's bent seat tube means that the top tube length gets a lot longer if you have your seat up high. I'll photograph my bike and tape measure when measuring so you can compare like with like.

Measured and photographed a rather muddy Moxie!

So from centre of seat clamp to top centre of head tube it’s 650mm (at my ~750mm saddle height). See how your Whyte compares.

I would love a moxie! Think the steeper seat tube compared to my bfemax would put me in a very comfy seated position. Feel a little stretched out sat pedalling on the bfemax. I often think about only owning hardtail for a while. Which is irrelevant to the thread so apolagies but you have all got me looking at moxies 😂

@chiefgrooveguru, taking exactly the same points mine measures 675mm. That inch difference doesn't surprise me as the Whyte's quoted ETT is 2 inches longer than the Moxie Long's. I think the Moxie Long will therefore help with my lower back pain but with a longer reach and wheelbase, still feel like a bigger bike out of the saddle. I've had a kind offer to sit on a Longer Moxie this w/e so will see how that feels.

Sounds like a good plan! I'm curious what you think of the size of the Longer as I've only sat on my Moxie and another in the same size but with a lighter build (140mm forks etc). Mine felt a bit big for a moment and then felt perfect!

I haven't experimented with the chainstay length on mine because it's been a singlespeed since I got it last year - but I've found that how long the back end of a bike is changes the fit somewhat because you end up subconsciously adjusting your fore-aft hip position to weight the wheels correctly. Longer chainstays equals hips further back so standing reach feels longer.

I’m curious what you think of the size of the Longer

So I sat on a Longer yesterday (thanks again Sam) and it definitely felt like an XL bike to me. Just that little bit too long in the cockpit to make me think it would be tough to live with day in day out. So I've decided to go long. What would I do without STW. Despite the login pita the subs fee is worth its weight in gold to get input like this thread. Thanks all!