Lightest Steel Frame?

[doctor-bond]

There is a sub 7kg Merckx MXL Leader on weight weenies (looks to be c. 55cm). Frame is 1920g. The MXL in Columbus Max is arguably the best racing frame in terms of weight, handling, stiffness. Interesting that the difference between that and super lights is only 200 - 300g. Half a bidon or skipping lunch.

 

[Canuk]

I just can't get my head around how they got a Tange Ultimate tubeset built into a frame at 1250gr? It's lugless, and the seat stay arrangement and drop outs are minimalist, but that's an incredible job.

 

[Canuk]

I remember meeting Graeme Obree once at a ln event at the Velodrome in Manchester and discussing frame building and he was very proud of building a 1400gr road frame it is 853, but how to shift another 150gr...?

That's average carbon frame weight territory.

 

[PanoIgano]

Hi @doctor-bond, I don't suppose you mean this one: https://weightweenies.starbike.com/forum/viewtopic.php?t=144985

Cause for this the frame is 2179gs and the fork 472g. It also looks bigger than 56. I would say at least 60.

If that's not the one, out of curiosity, can you share the link of the one you mean?

 

[PanoIgano]

I just can't get my head around how they got a Tange Ultimate tubeset built into a frame at 1250gr? It's lugless, and the seat stay arrangement and drop outs are minimalist, but that's an incredible job.

Wow!

I know Tange Ultimate to have gone down to some very thin heat treated tubesets to achive this. But I never thought they were below 1400gs. I guess this also depends on the size of the frame. I could see a 50cm frame being that light.

Anyhow, would you have a picture or link of the model you refer to?

 

[Canuk]

Wow!

I know Tange Ultimate to have gone down to some very thin heat treated tubesets to achive this. But I never thought they were below 1400gs. I guess this also depends on the size of the frame. I could see a 50cm frame being that light.

Anyhow, would you have a picture or link of the model you refer to?

Hi, it's upthread. It's Japanese of course and I believe it's a 53cm.

 

[Canuk]

This one!