ANOTHER average speed thread..... sorry
#26
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I used the Pugs to provide a clear example of how he was slower on one bike than other (although I have heard people argue that fatbikes are faster than road bikes on the road. Some people do believe fatbikes are the best thing ever) I agree that it is more interesting to see the abg speed difference between two road bikes. But I think the data is valuable on its own, even without power meters because it shows the actual effect of a bike.
#27
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By comparing speed with controlled power you may find out that bike A is faster than bike B. But if bike A beats the crap out of you when you ride fast, you may very well end up riding consistently slower to avoid being beat up. Or you may find that for a given power output the difference in time on a climb is negligible for two bikes. But in the real world, the lighter bike will encourage you to attack and you will find yourself putting a bigger effort (GBN saw something like that happen on one of their tests. They had a guy ride without a meter display and he pushed himself harder without noticing)
I agree that if you are trying to invest in upgrades finding the weak link is important. But knowing the real world effect is important -and darned interesting too.
#28
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My surprising take away is that the Felt (newer AL frame) has such an advantage on the Mondonico (classic steel frame). The Mondonico is the new (to me) bike and that may be the fact that I haven't ridden it as many times. Plus I spent last summer making lots of little tweaks and upgrades, so many of the rides were shake-down rides, not aggressive rides.
Is your position identical (including bar width)? 75-85% of your aerodynamic drag comes from the meat bag on top of the bike.
Do you have similar wheels? There's a significant difference between classic box-section and even vaguely aerodynamic modern rim shapes.
#30
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It does. You have now identified that you are usually faster over one section on one bike than on another one. You cannot, however, determine why you are faster on one bike over the other. It could be that the fit allows you to generate more power, or maybe it puts you into a more aerodynamic position. Maybe it has better drivetrain efficiency, or it is lighter. Or maybe you get a tailwind more often on one than on the other, or you have a bigger breakfast when you ride one of them. Maybe even a bit of everything.
I realize I didn't put this in an earlier, I've been riding this segment for 4 years. This nullifies issues of tires, drive train, ... Many components have been changed out on these bike. The only bikes that doesn't apply to are the Pugsley and Mondonico since they are both new to me in 2015.
Yes, fit is a subject of interest. The Mondonico is more aggressive than the Felt and this has taken some time to get accustom to. This goes back to an earlier post about the Mondonico being new and need more time to get comfortable with it.
There are also issues around a 20 year old derailleur and shifters, and 20 year old wheels on the Mondonico. The wheel set is the most likely thing to upgrade because I love the first generation Campy Ergo shifters.
Last edited by Hypno Toad; 01-28-16 at 08:21 PM.
#31
You gonna eat that?
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#32
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I can say that I honestly enjoy slow rides as much as I enjoy fast rides. Not every ride is a race. And by the same token, I love pushing myself to go faster. I enjoy pushing myself to go farther. Bikes are simply joyful.
#33
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Someone mentioned tires. What do you have on the two fastest bikes? They can make a difference. Also, somewhat worn tires are sometimes faster than new tires because the casing might be more flexible and there is less trad material
#34
meh
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To your specific question, the Felt has been through different set of tires (23 and 25) and the Mondonico is running my standard 700x25 tires. My next project to upgrade the Mondonico will be a wheel set, the wheels that are on it are a mismatch of 20 year old rims.
#35
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One thing you could do is to find another rider like you,ie.similar build, riding style and speed and ride the bikes and switch . If one of the bikes is consistently faster no matter who is iding, then it might be the faster bike.
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Nice point, and that was part of my consideration. The segment does not include any stops. Some of the rides are commutes, some are fitness rides, some are sunny days with a tailwind and some are snowy with a headwind. That's why I decided to try the 80/20 rule - kinda - to see overall, good day, and best days.
And thank you, I'm very lucky to have a collection of bikes. My garage is large enough that I don't need to get rid of old bikes for space, and I have been lucky enough to have two of these bikes to come to me at no cost - one was a gift and one was a prize.
And thank you, I'm very lucky to have a collection of bikes. My garage is large enough that I don't need to get rid of old bikes for space, and I have been lucky enough to have two of these bikes to come to me at no cost - one was a gift and one was a prize.
#37
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I think you need a large government grant to continue with this vital research.
#38
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This is the part that makes direct comparisons difficult. It is natural to choose a bike for a particular type of ride, and for particular types of weather conditions. Or at least be more likely to, resulting in more cold-weather commutes (for example) on one bike than on the other. The nature of the ride, as well as the bike itself, affects the speed. So unless you're choosing the bikes randomly I think that you need more granularity in your data or else normalize somehow.
I also consider the top 20% across all bikes mildly interesting, since this only compares top performances when conditions are best. All six bikes have been commuter bikes, and this segment is on my commuting route. I make it a point to ride all six bike throughout the summer months - personal goal to ride every bike each month when there is no snow.
Look specifically at the Kona and how the average speed changes from the "total" to the "top 20%". Since this is the Kona is the work-horse bike and sees some tough conditions, removing the bad weather days makes the biggest difference in the statistics. This shows that the Kona is a faster bike than the total average speed would indicate, but it is still not a pure road bike.
IMHO it's interesting, but not much more than interesting.
#40
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Look specifically at the Kona and how the average speed changes from the "total" to the "top 20%". Since this is the Kona is the work-horse bike and sees some tough conditions, removing the bad weather days makes the biggest difference in the statistics. This shows that the Kona is a faster bike than the total average speed would indicate, but it is still not a pure road bike.
IMHO it's interesting, but not much more than interesting.
IMHO it's interesting, but not much more than interesting.
#41
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I would suggest that the Mondonico is lazy and needs to work on improving ts pace.
#42
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Using spreadsheets for anything other than compulsive mileage tracking is just weird!
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#43
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Speed. There is good breakfast speed, double espresso speed and friday pm, cold beer in the pannier( must drink before warm) speed. That's all I know, what's strava?
#44
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Just what I was looking for. Now if only you had a hybrid with road tires on it.
#45
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I think I'm taking this "dead horse" topic from a different angle. I'm not asking if my average speed is good, or trying to impress anybody with my speed (or lack there of). I'm analyzing my average speed with all of my bikes over a specific Strava segment. I'm posting this to find out if I'm leaving any holes in my 'logic' as I analyze bikes and there relative speeds. Please look it over and let me know your thoughts.
For starters, I selected a segment near my house that I ride a ton (354 times). The segment is long enough (1.4 miles) and diverse enough (hilly and twisty) to be a good caparison.
For starters, I selected a segment near my house that I ride a ton (354 times). The segment is long enough (1.4 miles) and diverse enough (hilly and twisty) to be a good caparison.
The three bikes for this revisit:
1996 Mondonico - steel frame bike with original Campy Mirage ErgoPower group set
2013 Felt Z85 - AL frame bike with Shimano 105 group set
2021 Bianchi Infinito - CF frame with SRAM AXS group set
I'm interested to see how much different there is in these bikes that span 4 decades, and 3 different frame materials. 2013 Felt Z85 - AL frame bike with Shimano 105 group set
2021 Bianchi Infinito - CF frame with SRAM AXS group set
Some folks will find this interesting, and some will tell me it's all wrong and dumb (I'm sure they are right).
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#46
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As a TT guy.........a ton of it is how the lump on top presents itself to the wind.
If I raised the stack by several inches and opened up my pad width on my TT "super bike" to a really really comfy more novice position I bet I would be slower on it than if I put my real good fit coordinates on an old tube framed fixed gear pursuit bike. No doubt. Basically 2019 TT superbike versus mid-90's tube frame pursuit frame.........the old school would be faster with the superior fit.
If I raised the stack by several inches and opened up my pad width on my TT "super bike" to a really really comfy more novice position I bet I would be slower on it than if I put my real good fit coordinates on an old tube framed fixed gear pursuit bike. No doubt. Basically 2019 TT superbike versus mid-90's tube frame pursuit frame.........the old school would be faster with the superior fit.
#47
meh
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As a TT guy.........a ton of it is how the lump on top presents itself to the wind.
If I raised the stack by several inches and opened up my pad width on my TT "super bike" to a really really comfy more novice position I bet I would be slower on it than if I put my real good fit coordinates on an old tube framed fixed gear pursuit bike. No doubt. Basically 2019 TT superbike versus mid-90's tube frame pursuit frame.........the old school would be faster with the superior fit.
If I raised the stack by several inches and opened up my pad width on my TT "super bike" to a really really comfy more novice position I bet I would be slower on it than if I put my real good fit coordinates on an old tube framed fixed gear pursuit bike. No doubt. Basically 2019 TT superbike versus mid-90's tube frame pursuit frame.........the old school would be faster with the superior fit.
IMHO - Keeping the same rider on the same segment, riding the segment dozens of times, creates an interesting analysis.
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#49
meh
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Data point one on the new Bianchi, weather was cold (50℉) and there was no tailwind ... Bianchi was 7th fastest of my 605 attempts, about 21 seconds off the fastest time ever (with a nice tailwind). I foresee the Bianchi having a clear advantage in this test.