Skip to main content
Dennis Körner

Dennis Körner

Senior Design Engineer for Road Bikes at Specialized; lead engineer on the S-Works Tarmac SL9

Jul 1, 2026

23:31
So how did you do it?
23:33
You mean how we came to the 687 gram frame? Yeah.
23:38
I think that's probably everything has to do with maybe we elaborate on flow state design a little bit later during this discussion.
23:46
But we developed a pretty nice process, I would say, starting with ASOS 1 over Tarmac SL8, ASOS 2.
23:54
We just keep on evolving this process.
23:57
And we have a pretty strong simulation team.
24:00
Basically for Tarmac SL9, what they can do is that they have a ply-by-ply analysis and FEA combined basically in a simulation environment.

7 MINS LATER

31:16
So how do you narrow the head tube of the SL8 with internal cables without having to go to a bayonet or some other novel solution?

We value your privacy

We use cookies to understand how you use our platform and to improve your experience. Click “Accept All” to consent, or “Decline non-essential” to opt out of non-essential cookies. Read our Privacy Policy.