2021 Road Bike Stiffness Chart

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C36
Posts: 2554
Joined: Fri Mar 03, 2017 3:24 am

by C36

I would trust AX data whenever a third party would test it... I saw numbers from the previous frame that never materialised in a standardised test neither how the frame compared to competition at the time.


—————————————
- Supersix evo2 HM 5707g
- 1995 Miguel Indurain Pinarello restauration project
- R3000si Junior bike restauration project.

Roadrocket
Posts: 358
Joined: Wed Aug 29, 2018 8:43 am
Location: Slovakia

by Roadrocket

dbzznlqbqft wrote:
Mon Mar 15, 2021 2:16 am
rudye9mr wrote:
Mon Mar 15, 2021 12:51 am
rudye9mr wrote:
Fri Aug 07, 2020 11:10 am
Dr.Dos wrote:
Thu Aug 06, 2020 6:59 pm
Image
^219w @45kmph / Tour Magazine - fyi

Luftwiderstand (Drag), 45km/h... 219W
Gewicht Komplettrad (Weight / complete Bike)....7.9Kg
Lenkkopfsteifigkeit (Steering Head Rigidity /Stem?)).....99Nm/deg
Seitensteifigkeit Gabel (Lateral Rigidity Fork)....57N/mm
Tretlagersteifigkeit (Bottom Bracket Stiffness)......69N/mm
Federharte Sattelstutze (Spring hard seat post)...297N/mm

Gewicht Rahmen (Frame Weight)...1.340 Kg
Gabel (Fork).......0.425 Kg
Steuerlager........0.096 Kg
can you add to spreadsheet please? ^source and data above...tx
Sure thing! Thanks :D

Hi, if you´re interested I can send you pdf file with more than 50 bikes tested by TM, to update your chart.
Btw. good job.

by Weenie


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dbzznlqbqft
Posts: 57
Joined: Sun Jul 05, 2020 11:02 pm

by dbzznlqbqft

Roadrocket wrote:
Tue Mar 16, 2021 2:38 pm
Hi, if you´re interested I can send you pdf file with more than 50 bikes tested by TM, to update your chart.
Btw. good job.
That will be great! Thanks for helping the chart become better! :beerchug:

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wheelsONfire
Posts: 6391
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

The new frame carry more weight, sure, but it's not something that is totally bad. Stiffness to weight has increased and durability is way better.
Some guys had a bit of issues with the first gen (1 and 2) of Vial EVO. I had myself. But the latest holds way better.
I also was under 65Kgs when i used those and maxed out at 85Kgs with the new. I never felt stiffness was lacking even though i was around 20Kgs more.
Luckily i am down to in weight now. The new Ax rides good, it's very nimble and fast steering. Not feeling harsh but not a magic carpet either.
It's like a race bike but with a endurance geo i guess you can sum it up.
Bikes:

Ax Lightness Vial EVO Race (2019.01.03)
Open *UP* (2016.04.14)
Paduano Racing Fidia (kind of shelved)


Ex bike; Vial EVO D, Vial EVO Ultra, Scott Foil, Paduano ti bike.

GS100
Posts: 256
Joined: Fri Nov 27, 2015 12:00 pm

by GS100

IMO it's all about stiffness to weight, as said elsewhere on this thread.

Or if you wasn't absolute stiffness then Cipollini. Though nothing on these charts about them..

dbzznlqbqft
Posts: 57
Joined: Sun Jul 05, 2020 11:02 pm

by dbzznlqbqft

Hi guys, I updated some models today. Free free to share your opinions.

Also thanks @Roadrocket for helping me improve this chart.

Roadrocket
Posts: 358
Joined: Wed Aug 29, 2018 8:43 am
Location: Slovakia

by Roadrocket

No problem mate, glad to help with the chart, I like lab data as well.

But you forgot to add many of them to your chart:

Basso Diamante
Airstreem SL
Basso Astra
BH Ultralight
Corratec Team
Corratec Corones
Cube Litening
Felt FR3
Fuji Roubaix
Ghost Nivolet
Isaac Boson
Haibike Affair
Koga Premium
KTM Revelator
Rose Xeon
Scott Foil 20
Storck Aerfast
STORCK Aernario
Votec VRC

and some bikes tested only for stiffness(not aeroness)

Didn´t they catch your interest?

dbzznlqbqft
Posts: 57
Joined: Sun Jul 05, 2020 11:02 pm

by dbzznlqbqft

Roadrocket wrote:
Mon Mar 22, 2021 8:29 pm
and some bikes tested only for stiffness(not aeroness)

Didn´t they catch your interest?
Well, there are simply too many of them, usually if adding a bike I will also try to investigate the model release year, which sometimes is not that easy (and might not be accurate also :( ). However, this doesn't mean they will not be added and I can still give some priorities for some models due to requests.

raffyyy
Posts: 32
Joined: Wed Jul 15, 2020 2:58 am

by raffyyy

.

cajer
Posts: 736
Joined: Sun Jul 14, 2013 1:26 am

by cajer

It's interesting that the tests show the s5 got less comfortable going to disc brakes. As Cervelo said it got more comfortable.

dbzznlqbqft
Posts: 57
Joined: Sun Jul 05, 2020 11:02 pm

by dbzznlqbqft

cajer wrote:
Tue Mar 23, 2021 3:20 am
It's interesting that the tests show the s5 got less comfortable going to disc brakes. As Cervelo said it got more comfortable.
TOUR only tests the seatpost, I guess the new version S5 has changed its riding geometry so it will be more comfortable? This is something that will not reflect on the comfort score.

PrettyA
Posts: 75
Joined: Tue Apr 28, 2015 1:25 pm

by PrettyA

any info regarding the Factor O2 and O2 VAM?

dbzznlqbqft
Posts: 57
Joined: Sun Jul 05, 2020 11:02 pm

by dbzznlqbqft

PrettyA wrote:
Tue Mar 23, 2021 4:23 am
any info regarding the Factor O2 and O2 VAM?
Nope. I would really appreciate if someone can share some data.

TiPX
Posts: 15
Joined: Wed Feb 01, 2017 9:41 pm

by TiPX

I was considering a pinarello f12 for stiffness, this looks disappointing. I'm starting to love my sl5 once again ;)

Taiyoto
Posts: 77
Joined: Wed Mar 24, 2021 3:31 am

by Taiyoto

Where is Conalgo V3RS?? the 20 champion Tour de France??
the Trek Emonda SLR disc, the BB is very stiff comparing with V3RS and the Cervelo R5 is the mostly high stiffness in the BB, this is for high crazy riders.

For me I recommend the TCR or Aethos version, are more comfortable.

by Weenie


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