Are We Getting A New Cannondale Supersix?

Discuss light weight issues concerning road bikes & parts.
TheKaiser
Posts: 643
Joined: Thu Sep 05, 2013 3:29 pm

by TheKaiser

Mep wrote:
Fri Apr 26, 2019 3:11 pm
My guess is that they'll update the tube shapes for aerodynamics but keep everything else mostly the same, which is not too ground breaking considering we already have the R5 and Tarmac SL6. It's interesting because then Cannondale would lose their place as the lightest widely available frameset, in exchange for an updated but average climbing frameset. It just seems extremely unlikely that they would be able to make the frame +aero/-weight/-price than the SL6. That said, if they can achieve the trifecta, I'd be mighty impressed and would probably go out to buy one.

Otherwise, it would mark the end of an era. At least weight weenies can still look to Focus for hill climb builds.
I havent' been following the Tarmac weight progression. How much weight did they gain when they went semi-aero?

It doesn't seem like switching from a round downtube, seattube, and headtube to Kamm type truncated airfoils should add much weight, if any, if you do it by cutting off the back portion of the round profile. Improving airflow around the tube junctions and frame/fork junction is a bit of a different story, I suppose, but a more flowing interface actually provides more even stress distribution than the current relatively abrupt transitions from tube to tube, so depending on how much wiggle room they have they may simply be able to drop the wall thickness and spread it over a wider area. There are limits to that obviously, if things are getting so thin as to be intolerant of production variance or normal bumps, surface pressure, and handling.

by Weenie


ducman
Posts: 127
Joined: Fri Jan 07, 2011 12:49 pm

by ducman

reedplayer wrote:
Fri May 17, 2019 10:56 pm
Mep wrote:
Fri Apr 26, 2019 3:11 pm
.....
Otherwise, it would mark the end of an era. At least weight weenies can still look to Focus for hill climb builds.
regrettably not, because the "old" , light izalco max is although replaced by a heavier semi-aero-frame in 2019.
I just build an 2019 Izalco rim. :)

DartanianX
Posts: 602
Joined: Sun Nov 13, 2011 6:00 am
Location: Sydney, Australia

by DartanianX

Yes, end of June.

Looks amazing, definitely worth the wait.


Sent from my iPhone using Tapatalk

Mep
Posts: 498
Joined: Fri May 28, 2004 4:11 pm

by Mep


TheKaiser wrote: I havent' been following the Tarmac weight progression. How much weight did they gain when they went semi-aero?

It doesn't seem like switching from a round downtube, seattube, and headtube to Kamm type truncated airfoils should add much weight, if any, if you do it by cutting off the back portion of the round profile. Improving airflow around the tube junctions and frame/fork junction is a bit of a different story, I suppose, but a more flowing interface actually provides more even stress distribution than the current relatively abrupt transitions from tube to tube, so depending on how much wiggle room they have they may simply be able to drop the wall thickness and spread it over a wider area. There are limits to that obviously, if things are getting so thin as to be intolerant of production variance or normal bumps, surface pressure, and handling.
The Tarmac SL6 was a complete redesign and actually became both lighter and more aero, which speaks to either how unoptimized the previous Tarmac was or the abilities of Peter Denk, who went over from Cannondale after having designed the SuperSix Evo. Changing the tube profiles does add weight unfortunately, it's not just cutting off the back and calling it a day. While we can't use the Tarmac as a benchmark, the new Focus Izalco Max (as reedplayer pointed out) comes in at +100g frame +60g fork, manufacturer claimed. Obviously based on their tests the new version comes in faster, the aerodynamics more than make up for the weight increase, etc.

Ritxis
Posts: 381
Joined: Fri Jun 01, 2012 3:00 pm
Location: San Sebastian

by Ritxis

Caad13 ???
cad13.jpg
In Alu
caad13.jpg


Déjà vu......copy of copy of copy?........ :twisted: :twisted: :twisted:

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573
Posts: 337
Joined: Wed Sep 05, 2012 2:38 pm
Location: West Sussex, UK.

by 573

That 'CAAD13' seems to have no welds. I'd say it's a carbon CAAD. :wink:

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Dan Gerous
Posts: 1107
Joined: Sun Aug 12, 2007 6:28 pm

by Dan Gerous

Yeah the welds give it away, the grey one is definitely not a CAAD13.

The problem with dropped stays and rim brakes, awful rear brake cable routing.

BagelMaster
Posts: 139
Joined: Fri Aug 10, 2018 11:13 pm

by BagelMaster

I really want to see a geometry chart for the CAAD13/SuperSix. I'm also not too excited about a proprietary seatpost, as finding a 0 setback seatpost was east and it helped me fit on the SuperSix I rode for a while.

Mep
Posts: 498
Joined: Fri May 28, 2004 4:11 pm

by Mep

Pains me a little to see the exact same silhouette as just about every other manufacturer (dropped seatstays, Kammtail shapes), but guess they gotta do what they need to do to keep up. A geometry chart would be nice to have, but kinda doubt they'll make big changes to a proven setup. I'm still hoping that I'll somehow be proven wrong on my original guess, but those photos aren't trending in the right direction.

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micky
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Location: Vicenza
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by micky

Wasn't there a switch of engineers from Specialized to Cannondale? Or other way around?
That (perhaps) would explain the similar design.

muti
Posts: 100
Joined: Sat Dec 16, 2017 12:09 am

by muti

You're right.Peter Denk of Denk engineering now works for Specialized.He has designed some of the most iconic,groundbraking(for their times) and longlasting frames(Scott cr1/addict,Cannondale evo1/2 and now Tarmac sl6).So Cannondale have some big shoes to fill.Let's hope that another "annondale"doesn't show up.

Ritxis
Posts: 381
Joined: Fri Jun 01, 2012 3:00 pm
Location: San Sebastian

by Ritxis

muti wrote:
Tue May 21, 2019 9:17 am
You're right.Peter Denk of Denk engineering now works for Specialized.He has designed some of the most iconic,groundbraking(for their times) and longlasting frames(Scott cr1/addict,Cannondale evo1/2 and now Tarmac sl6).So Cannondale have some big shoes to fill.Let's hope that another "annondale"doesn't show up.
Sl6, innovative? :roll:

PeytonM
Posts: 41
Joined: Wed Apr 24, 2019 10:59 am

by PeytonM

Is the rear brake in the spy shot a direct mount or traditional?

Verbal
Posts: 58
Joined: Wed Dec 10, 2014 12:02 pm

by Verbal

For me it seems to be a direct mount.

by Weenie


BagelMaster
Posts: 139
Joined: Fri Aug 10, 2018 11:13 pm

by BagelMaster

I’m also happy to see no seatpost wedges or awkward bolts right next to the seatpost so you have to have a small torque wrench to get in there. Some of the seatpost clamp bolt locations on bikes make me wonder if the designers have ever ridden a bike before!

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