PeteHski

Best Bike Splits simulation software will show you the effects of weight, aero, power and wind over your specific course. It’s a subscription model, but not very expensive and quite useful for this kind of comparison. You can create and calibrate a model of both your bikes and it can take historic weather data from specific dates. It’s quite easy to use and reasonably accurate once you get the rollling resistance and aero drag calibrated for each bike. It’s even easier to do a relative comparison eg the effect of a 1.25 lb weight saving or a nominal percentage reduction in drag or rolling resistance.

OUGrad05

I have both and I think it really depends on the type of riding. My Scott Foil came oddly configured from Scott, still dealing with that. But it's fast, weirdly quiet, pretty comfortable vs what I was expecting. It's also pretty stiff when really giving it the beans. It also puts me in a pretty aggressive position. So for anything longer than about 50 miles I've been going for my new supersix Evo. I think on shorter rides really giving it hell the Scott is faster, but the new Supersix is mind blowingly fast. I've been absolutely stunned at how good that bike is. Doesn't hurt that Cannondale actually seems to care about customer service unlike the folks at Scott.

bruce19

I have a 2019 CAAD 12 and that bike is amazingly good. I love it.

PeteHski

I find that subjective perception of speed on a bicycle is hard to judge, at least on the same basic genre of bike. Variations in ambient conditions far outweigh relatively subtle differences in aero or weight for me. So I just trust the physics on those. Handling and ride quality are the only things I judge subjectively.

OUGrad05

This is exactly right. I've done lots of comparison and mathematical correction on various rides (yes I'm a nerd, but I have always enjoyed numbers and my day job entails a lot of detailed work so it trickles into my hobbies as well).

Getting rid of my Roubaix for a true road bike made a difference. But my Roubaix was surprisingly fast for an endurance bike. The differences on top tier bikes are fairly subtle but not unnoticeable. I wouldn't choose a bike just on speed, the SystemSix for example is really fast, but those few watts at regular rider speeds come with a lot of stiffness and on poor roads/longer rides I'll take a little more comfort.

PeteHski

That’s why I choose to ride endurance road bikes. My Canyon Endurace can hold it’s own on fast group rides and makes century rides on mixed quality roads less fatiguing. My wheels are still reasonably aero too. If I was younger and our roads were smoother I might be tempted to ride an Aeroad instead.

TMonk

I have a 2016 Venge Expert and a 2022 TCR Advanced Pro. The Venge was an elite team bike that I purchased at cost at the end of the season, and the TCR I built last year to replace my 2013 Advanced SL ISP that I loved. The Venge is rim brake and 11s mechanical, while the TCR Is Di2 12 speed and disc. Both bikes have carbon wheels with latex tubes and speedy tires, although the rims on the Venge are a bit deeper.

The Venge is the heavier, but faster bike of the two. I use it in all racing events (and race-y group rides) except road races with appreciable climbs in them. The TCR is my daily driver and climbing bike.

I much, much prefer to ride the TCR. It's marginally slower, but it just handles and rides so much better. It is a very easy bike to ride. The Venge rides like crap, but does what I need it to. My wife and I have a little one on the way (due September), so my training and racing will be pretty limited for a season or two. I imagine that the Venge will end up collecting dust in the garage during that time.

Sy Reene

My detailed analysis follows:
You put in 10 watts average less power on the aero bike and this is why you felt slower.

PeteHski

….and it was more windy.

genejockey 

I used to ride a 25 mi route to test my bikes against each other. I'd ride at much the same time of day, which around here means very similar temperature and winds. I'd go for similar RPE ( with multiple bikes I can't afford multiple power meters). The fastest was 4 minutes better than the slowest, about 0.9mph faster on average. This has held up in multiple rides since - the fastest bike keeps turning in the fastest times. But also, the bikes that are fastest have the greatest feeling of "effortless speed".

spinconn

I am curious. Which of your bikes was the fastest for you for that route?

genejockey 

Canyon Endurace, followed by a tie between the Battaglin and the Bianchi.

eduskator

That is, if there really was 10w less in average. 2 different PMs were used to measure my power.

genejockey 

Too many confounding variables. You need to find a statistician to design a assay matrix that tests all the variables. And ride each bike on the same route at least a dozen times at the same power. And swap power meters at least once. And wear the same clothes each time.

RChung

No you don't.

genejockey 

See first line of signature, below.

eduskator

Yeah, too complicated for nothing. I'll ride the bike I like the most regardless of if it's faster or not. I think every cyclists, unless they do that for a living, can agree that quality time spent on the bike is importantER than the average speed as end result.

genejockey 

When I did my test, it was for fun. I like riding each of my bikes, and somebody pointed out that my 25 mile route was kinda like a 40km TT route, so I tabulated the best times for grins. And of course, since it was all RPE, not even remotely rigorous.

FrankTuna

What year was your Roubaix? I have a 2021 Roubaix Expert that is super comfy (and pretty fast), but I bought it when I was ~35lbs heavier and my FTP was lower 🤣 I can ride for long periods in the drops and now feel limited to where I can't get the bars any lower because of the high stack.

Sorry but I must have missed what you replaced the Roubaix with. What are you riding now and how different is the fit?

Thanks!!

bruce19

My Canyon Aeroad was delivered yesterday. Set it up and went out for a ride today. I rode my 12 mi TT route. About 650 ft of elevation. Impressions: it fit like it was built for me. The Selle Italia snub nose saddle was excellent. The 41 cm bar width was perfect. There were double digit winds today so crosswinds were a staple of the ride. You could definitely feel them in the front wheel but it wasn't a big deal. The bike spun up nicely and the handling was supple. What totally surprised me was the comfort. Incredibly comfortable and just a joy to ride.

Trakhak

Congratulations!

This thread is now more fun than such threads usually turn out to be.

rsbob 

What I enjoy with my aero-bikes and rims, is that I can run the same speeds on the flats as I did in my 30s and 40s without killing myself. Sure the climbs are slower, but the descents and flats make up for it.

Glad you are enjoying your new ride. Pictures?

VegasJen

Good to hear. Post up a pic.

bruce19

https://www.canyon.com/en-us/road-bi...rahmenfarbe=GY

FrankTuna

That's alot of bike for $4k 😎😎😎 Enjoy it!!!