Captain_Canada

Hi! I'm looking at Trek's size chart and it looks like Trek reccommends about a size bigger for given height/weight than what I'd expect. 58cm for someone 5'10.9-6'0.8 and 60 cm for someone 6'0.8-6'2.8

As a 6'2 person my current CAAD10 is 58cm and seems spot on. Is a trek typically sized up one size? Looking at the domane.

Thanks!

bruce19

What's your inseam? Start with that.

WhyFi

Sizing based on height is really coarse - take it with a big grain of salt. I would start by comparing the stack and reach of your CAAD 10 to that of the Domane. The Domane is probably going to be taller (more stack height) for the same amount of reach, which will put you in a bit more of an upright position than the CAAD, all other things equal (spacers under the stem, stem angle and length, etc). Keep this in mind when thinking about your fit on the CAAD and the fit that you're looking for on the Domane.

Goodness, no - that's mostly irrelevant with regard to frame size, and has been for decades.

PoorInRichfield

I think you're right in that Trek's size chart for the new Domane is very, very odd to darn right wrong.

I own a 2020 Domane SL7. I'm 6'1" tall with a 33" inseam and ride a 58cm frame. What I find absolutely crazy is that with the stock seat post, I had the seat as far down as it could possibly go and that barely worked for me! I've never had that problem on a 58cm frame before. What makes that even more ridiculous is that according to the size chart, I should be riding a 60cm frame?!?! If I had purchased a 60cm frame the seat post wouldn't work at all. I had my LBS swap-out the seat post that came on the bike with the shorter model so now I at least have some vertical adjustability in the post.

Beware that the Domane has an "endurance fit" which makes them a little odd compared to other race bikes. What that typically means is that the head tube (vertical tube the fork goes into) is much taller on the Domane than it is on race bikes to give the rider a more comfortable, up-right position. I had a 58cm Trek Boone which does not have the endurance fit and compared it to my old 56cm Domane and found the head tube was the same height on both bikes (i.e., the 56cm Domane head tube was really tall.)

If you have Trek dealer near by, I'd call them to find out if they have any Domanes in stock so you can see for yourself if the 58cm will work for you. I was just at 2 bike stores yesterday and it's crazy... the showroom floors were almost completely empty due to a combination of high demand and an inability to get new bikes in-stock from Trek.

Sizing issues aside, I love my new Domane... it's a really well made, well thought-out endurance machine.

Captain_Canada

Thanks for the replies!

Inseam is 33-34

My 58cm CAAD10 has all but one spacer underneath the stem (about an inch of spacers) so while it's a race frame I have it set up somewhat upright (professionally fitted/feels good).

My usual routes have both smooth and rough roads and hills (SF bay area). While I can get up fine with my gearing (50/34 12/30) I'm sure I'd use easier gearing if I had it, plus wider tires seem like the way to go.

Definitely will be test riding too! It seems to take me a lot longer to feel what's right and wrong from a fit perspective, trying to minimize the chance of regret a few months into ownership. The sizes shown in Trek's sizing seem way bigger than I'd expect for given height and inseams, I appreciate the opinions.

noodle soup

not when you know the rider's height and inseam.

the OP is 6'2", so if his inseam is 32"-34" I would say try a 58cm.. Over 34" try a 60cm. He might need a longer stem on the 58cm bike.

I'm 6'2" with a 37" inseam, and ride a 60cm Domane.

bruce19

Is that 60 frame a manufacturer's designation or did you measure it using a virtual TT? Curious because my CAAD 12 is a 53 labeled but a 55 measured virtually. And, a 55 is what my 32.5" inseam requires. BTW, nice looking bike.

noodle soup

60cm manufacturer's designation(with a VTT). I absolutely love the bike, and would change nothing. It's a perfect fit, and rides like it's on clouds.

ckindt

Since we're showing our Domanes, here's mine.
It's a 62cm 2020 SLR. I'm 6'4" and ride with an 835mm BB to saddle height with 175mm cranks. I have the long seat post option and the longer setback. I do have the shorter setback too, but it's not installed.

noodle soup

What is the actual weight of that bike?

ckindt

~19.5lbs. completely stripped of gadgetry, tools and hidden pouches.
With xxx4s and 25mm GP5k/latex tubes.

noodle soup

Those newer ones got a little porky.

colnago62

I have a 2018 Domane and you can feel the weight difference compared to my Madone 9 when you lift them up.

WhyFi

I didn't know the rider's height and inseam, neither did the person to whom I was responding, so the assumption was that he was referencing old-school sizing methods based off of non-compact designs and seat tube length and/or stand-over height, which is a non-issue for the vast majority of people.

Maybe, but it depends. He's got his bike in front of him, he can see how it's set up. He should have an idea of what he's looking for, position wise, relative to his existing bike, so that's probably a better starting point than "in general..."

noodle soup

My 2015 Domane is under 17lbs with pedals and bottle cages.

noodle soup

Actually, the OP said he was 6'2" in his first post, so knowing his leg length and his height will tell you if he's of normal proportions.

colnago62

I feel like the adjustable ISO Speed added some extra weight.

WhyFi

I realize that.

WhyFi

As did the front IsoSpeed that was introduced in 2016 (I think?); noodle soup's Domane doesn't have that, either, so it'll be a little lighter on that count, as well.

bruce19

Correct. I asked for inseam so that the OP could measure the bike using it's virtual TT and get an actual frame size rather than the sloping TT sizes which are often inaccurate. As I said in a subsequent post, my CAAD 12 is a 53 according to Cannondale but measurement using a virtual TT it is actually a 55. Which fits me perfectly using the LeMond-Guimard formula for sizing.

ckindt

Yeah, they did.
I knew that before I bought it.
No WW here.

noodle soup

correct on both points.

the 2015 Domane 6.9 doesn’t have front Iso or adjustable rear Iso, and IMO its a better “strictly road” bike. I was thinking about buying an SLR frameset, but for me it didn’t make sense.

PoorInRichfield

I have to wonder how many SLR owners actually adjust their rear ISO decoupler beyond it's initial setting. It's not like a dropper post where you can adjust it on the fly while riding. How many people ride an entire ride on something like cobblestones and adjust the frame one way, then ride completely smooth roads the next ride and adjust the frame accordingly?

The adjustability is useful so that a 250 lbs rider can setup the frame differently than a 150 lbs rider, but once set I bet my bottom dollar that the ISO decoupler rarely gets adjusted again.

PoorInRichfield

True dat I've been trying to do something about that as money allows:
Dear Diary: My Trek Domane Must Go on a Diet

noodle soup

Luckily weight doesn't really matter all that much. 2-3lbs off your bike with a 180lb rider doesn't make a huge difference. No one wants an overweight bike, but it doesn't make a huge difference in reality.