Raleigh Dyna Tech appreciation and information thread

[mattr]

Sort of.

 

[longun]

Re:

Head tubes alloy on the early steel ones but cromoly on these iirc

 

[Jonny70]

Dyna Tech 925 Vento

Hi,
I have a dynatech titanium 925 Vento, full Campagnola 8spd chain set, campagnola seatpost, titanium stem and the most wonderful set of Campagnola Vento rims on Campagnola hubs. I'm desperate to find anything out about this bike, I think it's around 92/93 but could be wrong. What do you all think ??

 

[ultrazenith]

Anyone remember whether any of the Dynatech Diablos came with a titanium seat tube?

My newly finished '92 one does,



Steel back end too. The headtube isn't magnetic though. Alloy? Not ti I imagine

Thread here,

viewtopic.php?f=6&t=349428&hilit=DIABLO

Mike

Yes, definitely alloy head tube.

 

[ferrus]

It's probably a mangmoly instead of cromoly.
Mangmoly isn't magnetic

Yes it is! ??
I don't know about modern steels, but all Reynolds tubing was Mang-Moly except 501 - and definitely magnetic

 

[ultrazenith]

Mang Moly is still mostly iron, and thus is magnetic.

 

[mattr]

Depends on the manganese content. High manganese (8% ish i think, years since i've looked at it) = non magnetic. Not sure how much reynolds use.

I don't know about modern steels, but all Reynolds tubing was Mang-Moly except 501 - and definitely magnetic

How modern do you mean? 725 and 525 are chrome molybdenum. The rest of the metals they seem to be a bit cagey about. But as you say, most likely mang moly or a derivative of.

But either way, as established up there, it's an aluminium alloy head tube.

 

[ferrus]

Re:

Despite being ferrus I'm no iron-man, and am pretty much un ironed! Bit rusty though and tend to prefer titanium these days...ironically

 

[longun]

it all comes from rocks though......i think haha

 

[ultrazenith]

All from supernovae explosions, after a chain of fusion reactions converted hydrogen and helium into progressively heavier elements.