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Which one is faster?

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Old 06-27-24, 12:44 AM
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Which one is faster?

A steelbike 10,5 kg with nice wheelset or a light carbonbike 8,7 kg with not good wheelset as the steelbike.

which one do you think is faster? Of course hard to say if you dont know all the other components and so on but just a guess? 🤗
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Old 06-27-24, 01:42 AM
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What colour are they?
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Old 06-27-24, 01:46 AM
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Originally Posted by Tobiasji
A steelbike 10,5 kg with nice wheelset or a light carbonbike 8,7 kg with not good wheelset as the steelbike.

which one do you think is faster? Of course hard to say if you dont know all the other components and so on but just a guess? 🤗
The lighter bike will have a slight advantage on climbs (you can use an online calculator or app to estimate climbing speeds for given power and weight).

On the flat it will depend entirely on which setup is more aerodynamic overall.

This is assuming you have the same tyres on both etc
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Old 06-27-24, 01:58 AM
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The one with me on it.
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Old 06-27-24, 03:12 AM
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Originally Posted by Tobiasji
A steelbike 10,5 kg with nice wheelset or a light carbonbike 8,7 kg with not good wheelset as the steelbike.

which one do you think is faster? Of course hard to say if you dont know all the other components and so on but just a guess? 🤗
The one with Pogacar on it.
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Old 06-27-24, 05:28 AM
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depends...
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Old 06-27-24, 09:59 AM
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Neither.

Welcome to BF.
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Old 06-27-24, 10:36 AM
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The red one.

.
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Old 06-27-24, 10:44 AM
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8.7 kg is “light”?

Gosh, I learn so much on bf.
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Old 06-27-24, 11:00 AM
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Originally Posted by Koyote
8.7 kg is “light”?

Gosh, I learn so much on bf.
Compared to 10.5kg, yes.

In answer to the OP...Assuming the same rider in the same conditions, in most situations, the one that is more aerodynamically efficient overall will be faster. Going uphill, there will be a point in increasing grade where weight becomes more important than aero. That point will be largely affected by the power of the rider. A pro doing 20mph up a 6% grade is going to value aero more than an amateur doing 8mph on the same hill.
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Old 06-27-24, 11:02 AM
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There's no real difference that matters between 15mph and 17mph. In the end, it ain't the bike, unless you're up in that rare tip top of current pros.

However, if you really want to know, I'd dig up some posts by jamesdak He's got a large fleet and has done pretty good testing on a lot of his mounts.
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Old 06-27-24, 11:57 AM
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Originally Posted by nomadmax
There's no real difference that matters between 15mph and 17mph. In the end, it ain't the bike, unless you're up in that rare tip top of current pros.
You don't have to be a pro cyclist to compete or just to care about performance.

And for anyone who cares about performance, a 2 mph difference is enormous. In the race I rode last weekend, riding 2 mph faster would've put me on the podium. (Not that the difference between the OP's two bikes will be that high.)
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Old 06-27-24, 12:02 PM
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Originally Posted by Shadco
The red one.

.

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Old 06-27-24, 12:08 PM
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Originally Posted by nomadmax
There's no real difference that matters between 15mph and 17mph. In the end, it ain't the bike, unless you're up in that rare tip top of current pros.

However, if you really want to know, I'd dig up some posts by jamesdak He's got a large fleet and has done pretty good testing on a lot of his mounts.
A 2 mph difference gets me dropped from my favorite group rides, and means I'm out on a gravel race course for quite a bit longer. If a bike is costing me that much speed, I'm on the wrong bike for the kind of riding I like to do. Being a tip top pro is not a requirement to want your bike to give you the most performance for the fitness you currently have.
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Old 06-27-24, 12:09 PM
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Originally Posted by Koyote
You don't have to be a pro cyclist to compete or just to care about performance.

And for anyone who cares about performance, a 2 mph difference is enormous. In the race I rode last weekend, riding 2 mph faster would've put me on the podium. (Not that the difference between the OP's two bikes will be that high.)
So true. A 2 mph difference in average speed is easy spin vs sufferfest in human performance and old beater on frozen hosepipe tyres vs $20K aero superbike in bike terms.

That 1-2 kg difference in bike weight is just background noise.
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Old 06-27-24, 01:03 PM
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Old 06-27-24, 01:12 PM
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Originally Posted by Koyote
You don't have to be a pro cyclist to compete or just to care about performance.

And for anyone who cares about performance, a 2 mph difference is enormous. In the race I rode last weekend, riding 2 mph faster would've put me on the podium. (Not that the difference between the OP's two bikes will be that high.)
I'll double down. The difference between 15mph and 17mph is Fred and Super Fred.
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Old 06-27-24, 02:01 PM
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Originally Posted by nomadmax
I'll double down. The difference between 15mph and 17mph is Fred and Super Fred.
Come out with me on a 100-mile gravel race and average 15 mph -- or better yet, 17 mph, since you think it's about the same thing. Then let's see what you think.
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Old 06-27-24, 02:11 PM
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The one that gets there first is faster.
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Old 06-27-24, 03:13 PM
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Originally Posted by Koyote
8.7 kg is “light”?

Gosh, I learn so much on bf.
Unfortunately... yes, nowadays that became "light". Many brand bikes below 4-5000 EUR price tag go toward that weight...
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Old 06-27-24, 03:14 PM
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The one with ceramic bearings.
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Old 06-27-24, 04:31 PM
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Originally Posted by nomadmax
I'll double down. The difference between 15mph and 17mph is Fred and Super Fred.
Uh oh. My ride yesterday averaged only 15.4 mph. Towards the bottom end of the Fred scale.

Oh the humiliation!
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Old 06-27-24, 04:57 PM
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Originally Posted by terrymorse
Uh oh. My ride yesterday averaged only 15.4 mph. Towards the bottom end of the Fred scale.

Oh the humiliation!
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Old 06-27-24, 04:59 PM
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They're both slow...
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Old 06-27-24, 08:03 PM
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Originally Posted by Kai Winters
depends...
Because that rider doesn't have to stop for nature breaks.
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