Why do aero bikes handle like barges or is it just me? [emoji2369]

Discuss light weight issues concerning road bikes & parts.
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ultyguy
Posts: 2377
Joined: Fri Aug 06, 2010 1:35 pm
Location: Geneva

by ultyguy

So I’ve had a few aero bikes over the years as they are obviously faster, especially at race speeds (when I’m trying to close back the gaps after getting drop in climbs by skinny guys). However, I haven’t found a single one that does have a fair amount of understeer to it. I have no clue if this is a user issue or something else. The geo of all these bike have been a carbon copy of ‘normal’ race frames so it’s not in the geo.

Aero bikes ridden

Canyon Aeroad
Scott Foil
Felt AR

Anyone had similar experiences? Am I just crazy. Do you have an aero bike that doesn’t feel like this?


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jlok
Posts: 1057
Joined: Tue Jun 30, 2015 3:30 am

by jlok

Propel Adv SL Disc. Quick and responsive handling.
Litespeed T1sl Disc / BMC TM02 < Giant Propel Advanced SL Disc 1 < Propel Adv < TCR Adv SL Disc < KTM Revelator Sky < CAAD 12 Disc < Domane S Disc < Alize < CAAD 10

by Weenie


ryanw
Posts: 811
Joined: Sat Apr 16, 2016 6:52 pm
Location: London

by ryanw

Throw your leg over a new Venge and thank me later.
'16 Cervelo S5 - 6,650g RIP
'17 Focus Mares Force 1 - 7,170g
'19 Cervelo S5 Disc - 7,460g

IG: RhinosWorkshop - Check it out for all my custom builds :thumbup:

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Campervan
Posts: 99
Joined: Thu Nov 29, 2018 7:45 pm

by Campervan

ryanw wrote:
Thu Apr 18, 2019 2:42 pm
Throw your leg over a new Venge and thank me later.
I was about to same virtually the same. I did find the BMC TMR01 more relaxed than the new Venge.
BMC Granfondo 02 105
Btwin 540
Specialized Venge Pro Disc

jfranci3
Posts: 703
Joined: Tue Jul 26, 2016 5:21 pm

by jfranci3

When do you notice this? Are you on stock wheelsets/tires at your normal pressures? True understeer would come from weight distribution front/rear. I doubt you're losing traction with your front tire, so it's probably some other sensation. If it is true understeer, you'd likely want to shift weight rearward.

Youre probably saying high load cornering, your inputs feel less direct. Aero bikes have a narrower down tube, which might give this sensation. Other factors could be disc wheelsets have narrorer spoke falanges, aero forks/frames are less laterally stiff in general, some aero bikes have around 1cm longer wheelbase. If the bike is running different or fatter size tires it'll feel like understeer also. Even the same size Schwalbe Pro One feels radically different than a Hutchinson Galtikcon 11STORM! when you pitch the bike, with the Hutchinson feeling more oval and inexact.
Last edited by jfranci3 on Thu Apr 18, 2019 3:47 pm, edited 2 times in total.

rides4beer
Posts: 180
Joined: Wed Nov 28, 2018 5:27 am
Location: SC

by rides4beer

I've only ridden one, my Transonic, but it handles great imo (again, with nothing to compare it to). I guess I'd have to ride some others to know, but I've never felt unsafe riding in a tight group, or taking curves at high speeds. I haven't raced a crit with it, or anything like that, which I guess would be a better test of handling than a fast group ride.

refthimos
Posts: 297
Joined: Fri May 25, 2012 6:02 pm

by refthimos

I find my SystemSix Hi-Mod to be quite nimble - it has a slightly different "feel" to it from my SuperSix, but I think that's mostly the result of the SuperSix being over 2kg lighter.
Last edited by refthimos on Thu Apr 18, 2019 8:18 pm, edited 1 time in total.
EVO1 | 5.37kg
EVO3 Coming soon! [6.19kg]
SystemSix | 8.01kg
TCR Advanced SL Disc | 7.35kg
P5 | 9070 Di2 | SISL2 SRM | Enve 7.8 | Disc TBD
T1 | P2Max Type S | Rolf Prima FX58/Zipp Super 9 Disc

dcorn
Posts: 321
Joined: Thu Oct 05, 2017 4:21 pm
Location: NoVA

by dcorn

Understeer?? If your front tire is pushing through turns, you might be going too fast.

Haven't noticed any sluggish handling in my Aeroad compared to an S-works SL4 Tarmac or my new Allez Sprint. Maybe acceleration or snappiness, just because the Aeroad weighs a bit more and has much deeper wheels.

ChiZ01
Posts: 308
Joined: Wed Jan 01, 2014 6:20 pm

by ChiZ01

check the HT angle and fork trail

by Weenie


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