Notices
"The 33"-Road Bike Racing We set this forum up for our members to discuss their experiences in either pro or amateur racing, whether they are the big races, or even the small backyard races. Don't forget to update all the members with your own race results.

Aero thoughts

Old 03-22-17, 06:41 AM
  #251  
dz_nuzz
Rides too much bike
 
dz_nuzz's Avatar
 
Join Date: Nov 2013
Location: Boston
Posts: 842
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 232 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Ahem: Aero Assistant
dz_nuzz is offline  
Old 03-22-17, 01:44 PM
  #252  
spectastic
commu*ist spy
 
spectastic's Avatar
 
Join Date: Aug 2012
Location: oregon
Posts: 4,459
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 5 Times in 5 Posts
Originally Posted by rubiksoval
Thread about this the other day on slowtwitch.
Aerodynamic Hierarchy: Triathlon Forum: Slowtwitch Forums

Referenced this, but it's about 7 years old:

Speed For Sale

I want to say bikeradar or someone had another similar chart that was a bit more recent, but I can't find it.
perfect. thanks.

It looks like I should start wearing my aero helmet more before I consider deep wheels again for races.. don't think i will ever go with deep wheels again, unless they're disc
spectastic is offline  
Old 03-22-17, 01:57 PM
  #253  
spectastic
commu*ist spy
 
spectastic's Avatar
 
Join Date: Aug 2012
Location: oregon
Posts: 4,459
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 5 Times in 5 Posts
Originally Posted by dz_nuzz
I saw that at one point, and thought it was trying to give good information but the information is so amorphous that it just made it more complicated.
spectastic is offline  
Old 03-22-17, 04:02 PM
  #254  
Ygduf
\_(ツ)_/
 
Ygduf's Avatar
 
Join Date: Jun 2008
Location: Redwood City, CA
Posts: 10,978

Bikes: aggressive agreement is what I ride.

Mentioned: 109 Post(s)
Tagged: 0 Thread(s)
Quoted: 967 Post(s)
Likes: 0
Liked 4 Times in 4 Posts
wtf is supply side
Ygduf is offline  
Old 03-22-17, 04:14 PM
  #255  
HTupolev
Senior Member
 
Join Date: Apr 2015
Location: Seattle
Posts: 4,178
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 1933 Post(s)
Liked 1,226 Times in 592 Posts
Originally Posted by Ygduf
wtf is supply side
Hanging onto the water bottle being supplied out the side of the team car.

Or.

Arguing to the cycling regulatory bodies that restrictions on aerodynamic equipment should be more lenient.
HTupolev is offline  
Old 03-22-17, 05:15 PM
  #256  
spectastic
commu*ist spy
 
spectastic's Avatar
 
Join Date: Aug 2012
Location: oregon
Posts: 4,459
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 5 Times in 5 Posts
supply is the engine. (eg. training, power meter, coaching, training peak, etc)

everything else is under the "equipment" category
spectastic is offline  
Old 04-06-17, 09:05 PM
  #257  
TheKillerPenguin
Nonsense
 
TheKillerPenguin's Avatar
 
Join Date: Sep 2004
Location: Vagabond
Posts: 13,906

Bikes: Affirmative

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 873 Post(s)
Liked 523 Times in 226 Posts
In response to the IAB snobbery ima just stroll on in and leave this thing sitting about.
TheKillerPenguin is offline  
Old 04-06-17, 09:20 PM
  #258  
Ygduf
\_(ツ)_/
 
Ygduf's Avatar
 
Join Date: Jun 2008
Location: Redwood City, CA
Posts: 10,978

Bikes: aggressive agreement is what I ride.

Mentioned: 109 Post(s)
Tagged: 0 Thread(s)
Quoted: 967 Post(s)
Likes: 0
Liked 4 Times in 4 Posts
that you?
Ygduf is offline  
Old 04-07-17, 01:59 PM
  #259  
miyata man
Senior Member
 
miyata man's Avatar
 
Join Date: Mar 2010
Posts: 2,187
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 243 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Guy who TT'd out ahead of the field yesterday at Tour of the Basque Country in his final push to the line.
miyata man is offline  
Old 04-07-17, 03:39 PM
  #260  
TheKillerPenguin
Nonsense
 
TheKillerPenguin's Avatar
 
Join Date: Sep 2004
Location: Vagabond
Posts: 13,906

Bikes: Affirmative

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 873 Post(s)
Liked 523 Times in 226 Posts
I have stronger sock game!
TheKillerPenguin is offline  
Old 04-23-17, 07:34 PM
  #261  
Doge
Senior Member
 
Doge's Avatar
 
Join Date: Jan 2014
Location: Southern California, USA
Posts: 10,441

Bikes: 1979 Raleigh Team 753

Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3355 Post(s)
Liked 366 Times in 248 Posts
Originally Posted by mike868y
FYI, Div I and Div II are no longer a thing in collegiate cycling. It's club/varsity now. With all the time you spend dissecting the rule book i am literally shocked you don't know that.
I thought of you/this post. This year in the RM conf Club is stronger.
Someone else can write USAC a note and splain the transition to them.
While @mike868y is correct, USAC is still using the older designation and has it wrong.
(Div I -> Varsity and Div II -> Club) They have it switched, or maybe they don't. Fewer Varsity riders are making the top 5 than the Club riders - in Rocky Mountain - Colorado/NM region.

For next week:
CollegiatNationalsReg.jpg

Last edited by Doge; 04-23-17 at 07:52 PM.
Doge is offline  
Old 04-23-17, 10:40 PM
  #262  
Ttoc6
Cat 2
 
Ttoc6's Avatar
 
Join Date: Nov 2016
Location: UT
Posts: 1,570

Bikes: Tarmac, Why Cycles R+, Evil The Calling

Mentioned: 91 Post(s)
Tagged: 0 Thread(s)
Quoted: 605 Post(s)
Liked 194 Times in 87 Posts
Originally Posted by Doge
I thought of you/this post. This year in the RM conf Club is stronger.
Someone else can write USAC a note and splain the transition to them.
While @mike868y is correct, USAC is still using the older designation and has it wrong.
(Div I -> Varsity and Div II -> Club) They have it switched, or maybe they don't. Fewer Varsity riders are making the top 5 than the Club riders - in Rocky Mountain - Colorado/NM region.

For next week:
Attachment 560560
Yeah. My team was very confused about which to select and I noticed that at least a few of the guys from my conference that selected the d2 (Varsity?) race even they are definitely a club school. TO make this even more confusing, my team won the D1 title in our conference despite being a club team (D2?).


I imagine USAC will just give us the right numbers and tell us when to show up at packet pickup in Grand Junction,. All I know Is I don't have to race against the Marians and Lewis/Clark racers of the world; which should make our race in the club side more bearable hahaha.
Ttoc6 is offline  
Old 04-24-17, 04:04 AM
  #263  
mike868y
Senior Member
 
mike868y's Avatar
 
Join Date: Jul 2008
Posts: 9,284
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 248 Post(s)
Liked 1 Time in 1 Post
Originally Posted by Ttoc6
...which should make our race in the club side more bearable hahaha.
i've never done collegiate nats but i've done enough collegiate racing to know this is wishful thinking
mike868y is offline  
Old 04-24-17, 09:14 AM
  #264  
Hida Yanra
VeloSIRraptor
 
Join Date: Mar 2008
Location: Deschutes
Posts: 4,584
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Liked 1 Time in 1 Post
Originally Posted by mike868y
i've never done collegiate nats but i've done enough collegiate racing to know this is wishful thinking
Eh - I have done collegiate nats, and not having Lewis/Clark & Marian in my races would have made that experience substantially different.

There would have been plenty of people in there who were faster than me - but there wouldn't have been multiple coordinated hit-squads of 6(?) guys taking turns smashing the field, for the duration of the race.

the deep squads are very clear on how to work over the field, and they do it well. Racing against squads with depth is a totally different experience than racing against a "normal" collegiate team that has 1-3 really good racers on it, because you go from "full attacks the entire race" to "we can attack a few times".... over say, a 60' race, that's a BIG difference.
Hida Yanra is offline  
Old 05-01-17, 10:56 AM
  #265  
Ygduf
\_(ツ)_/
 
Ygduf's Avatar
 
Join Date: Jun 2008
Location: Redwood City, CA
Posts: 10,978

Bikes: aggressive agreement is what I ride.

Mentioned: 109 Post(s)
Tagged: 0 Thread(s)
Quoted: 967 Post(s)
Likes: 0
Liked 4 Times in 4 Posts
aero hoods ftw

Which aero bike is actually the fastest? - Cycling Weekly
Ygduf is offline  
Old 05-01-17, 11:45 AM
  #266  
miyata man
Senior Member
 
miyata man's Avatar
 
Join Date: Mar 2010
Posts: 2,187
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 243 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I'm a little spotty on the term 'aero hoods'. IAB is nowhere near the hoods so I have to wonder if they simply mean aero tuck on hoods.
miyata man is offline  
Old 05-01-17, 11:58 AM
  #267  
HTupolev
Senior Member
 
Join Date: Apr 2015
Location: Seattle
Posts: 4,178
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 1933 Post(s)
Liked 1,226 Times in 592 Posts
Originally Posted by miyata man
I'm a little spotty on the term 'aero hoods'. IAB is nowhere near the hoods so I have to wonder if they simply mean aero tuck on hoods.
Hoods with forearms level, probably.
HTupolev is offline  
Old 05-01-17, 12:13 PM
  #268  
miyata man
Senior Member
 
miyata man's Avatar
 
Join Date: Mar 2010
Posts: 2,187
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 243 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I always perform science using an upright posture. No slouching or bending over. Even more importantly I don't write articles about which bike sprints faster from a expert standpoint using a seated, tucked position then throw watts in as the determining factor. I get out there and thrash the bike side to side while changing line as much as permissible. Faster is faster no matter how feverishly misapplied science makes me tingle
miyata man is offline  
Old 05-01-17, 12:19 PM
  #269  
aaronmcd
Senior Member
 
aaronmcd's Avatar
 
Join Date: Aug 2013
Location: SF, CA
Posts: 3,462

Bikes: Cervelo S5, Marin Gestalt X11

Mentioned: 71 Post(s)
Tagged: 0 Thread(s)
Quoted: 554 Post(s)
Liked 65 Times in 45 Posts
Originally Posted by Ygduf
380 watts translated to 29 mph? On a road bike? That must be one twig of a cyclist!
aaronmcd is offline  
Old 05-01-17, 06:52 PM
  #270  
echappist
fuggitivo solitario
 
Join Date: Jun 2009
Location: Northern NJ
Posts: 9,107
Mentioned: 32 Post(s)
Tagged: 0 Thread(s)
Quoted: 243 Post(s)
Liked 13 Times in 9 Posts
Originally Posted by aaronmcd
380 watts translated to 29 mph? On a road bike? That must be one twig of a cyclist!
low crr + advantageous air density reduces the CdA needed to ~0.26. Definitely doable with a good skin suit and good helmet
echappist is offline  
Old 05-01-17, 07:53 PM
  #271  
scheibo
once a runner
 
scheibo's Avatar
 
Join Date: Aug 2013
Location: bay area
Posts: 511

Bikes: n+1

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 270 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
i was about 350W for 5 minutes OTF at red kite and was 28mph, no skin suit or fancy helmet necessary. seems reasonable to me
scheibo is offline  
Old 05-01-17, 08:24 PM
  #272  
aaronmcd
Senior Member
 
aaronmcd's Avatar
 
Join Date: Aug 2013
Location: SF, CA
Posts: 3,462

Bikes: Cervelo S5, Marin Gestalt X11

Mentioned: 71 Post(s)
Tagged: 0 Thread(s)
Quoted: 554 Post(s)
Liked 65 Times in 45 Posts
My calcs show I would need 386-398 watts to hold 28 mph (based on ~25-26 mph at 300ish not counting very windy days)

But doing some geometry and considering my pretty un-aero shape I am considering shorter cranks and moving the saddle to the weird forward position I had a couple years back. In hopes of getting lower and being able to stretch out a bit more.
aaronmcd is offline  
Old 05-02-17, 06:32 AM
  #273  
topflightpro
Senior Member
 
topflightpro's Avatar
 
Join Date: Jul 2007
Posts: 7,542
Mentioned: 54 Post(s)
Tagged: 0 Thread(s)
Quoted: 1843 Post(s)
Liked 662 Times in 416 Posts
He's also in an indoor velodrome. Indoor times are generally better than outdoor times due to lack of wind.
topflightpro is offline  
Old 05-03-17, 03:00 PM
  #274  
bbbean 
Senior Member
 
bbbean's Avatar
 
Join Date: Jul 2013
Location: Missouri
Posts: 2,538

Bikes: Giant Propel, Cannondale SuperX, Univega Alpina Ultima

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 592 Post(s)
Liked 345 Times in 196 Posts
Originally Posted by aaronmcd
380 watts translated to 29 mph? On a road bike? That must be one twig of a cyclist!
I can translate 350 watts to around 40 mph on my rollers.
__________________

Formerly fastest rider in the grupetto, currently slowest guy in the peloton

bbbean is offline  
Old 05-03-17, 03:24 PM
  #275  
Doge
Senior Member
 
Doge's Avatar
 
Join Date: Jan 2014
Location: Southern California, USA
Posts: 10,441

Bikes: 1979 Raleigh Team 753

Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3355 Post(s)
Liked 366 Times in 248 Posts
Originally Posted by aaronmcd
My calcs show I would need 386-398 watts to hold 28 mph (based on ~25-26 mph at 300ish not counting very windy days)

But doing some geometry and considering my pretty un-aero shape I am considering shorter cranks and moving the saddle to the weird forward position I had a couple years back. In hopes of getting lower and being able to stretch out a bit more.
This year junior road a section on his mass start legal bike (DA2 turned road bike) and went 269W (Power Tap) @ 31.9 mph for 14min. That was traffic wind aided. He is more aero now than he was 2 years ago on the same flat segment he's done over 30 times. But seems he's good for about 30mph on that road bike now for ~10min or so on about any flat road w/o wind.

That calculations get off quite a bit here. Junior's 32.2 mph says 610W calculated - guess it was about 300.
https://www.strava.com/segments/709325?filter=overall
Doge is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.